cat c12 normal boost pressure

utilizing said port. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. Still no power. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish.

WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. utilizing said port. However, normal oil pressure is around 50 psi. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal The boost ran about 26.6 going up the mountains north of Redding. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. That is well above the green band. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). What brand is it? When was it last lubed? Brett katlen86 Members 11 posts Report No obvious cracks around turbo.

WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Are these 700HP C-12? Only show this user. no mpg loss at highway speed. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. I have checked for leaks in intercooler and pipes. no mpg loss at highway speed. My 2002 c12 does not have the power it used to. No obvious cracks around turbo. Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? That is well above the green band.

(28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in May 14, 2007. Brett katlen86 Members 11 posts Report Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. What brand is it? I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? This started about 8 month ago. I'm in the uk and have a CAT C12 in a tipper -dump truck. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards.

I used to get 27 to 30 psi. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. I've seen it touch 24 psi briefly on occasion. 2. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. It doesn't pull in 10th much at all. Only show this user. Two things to start with: 1. I only get 12psi to 15 psi of manifold pressure now.
Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. sensor cat pressure c7 oil c15 c12 c18 caterpillar fits c9 WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. utilizing said port. The boost ran about 26.6 going up the mountains north of Redding. Fuel pressure is normally 70-90 psi. Check "plumbing" between turbo and CAC and CAC and engine. This started about 8 month ago. I've seen it touch 24 psi briefly on occasion. It is very flat below that, and doesn't pull very well. pressure 1705 c12 caterpillar c15 WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. May 14, 2007. I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. My 2002 c12 does not have the power it used to. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Of course, boost pressure is a function of engine load. That is well above the green band. Fuel 2. I've seen it touch 24 psi briefly on occasion. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. What brand is it? The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. I'm in the uk and have a CAT C12 in a tipper -dump truck. Fuel pressure is normally 70-90 psi. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. Its operating range is 1,200 to 2,100 RPM. When was it last lubed? WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. I'm in the uk and have a CAT C12 in a tipper -dump truck. However, normal oil pressure is around 50 psi. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. Only show this user. Still no power. Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. Two things to start with: 1. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. It is very flat below that, and doesn't pull very well. I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. My 2002 c12 does not have the power it used to. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. There is also a wide range of optional no mpg loss at highway speed. Are these 700HP C-12? WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like.

Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. fuel pressure with mechanical gauge at filter housing is normal. WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure. The boost ran about 26.6 going up the mountains north of Redding. When was it last lubed? Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. I have checked for leaks in intercooler and pipes. I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. Check "plumbing" between turbo and CAC and CAC and engine.

Of course, boost pressure is a function of engine load. Fuel Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! Are these 700HP C-12? Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). I only get 12psi to 15 psi of manifold pressure now. fuel pressure with mechanical gauge at filter housing is normal. Fuel Of course, boost pressure is a function of engine load. Check "plumbing" between turbo and CAC and CAC and engine. If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. Still no power. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on.

WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure. Its operating range is 1,200 to 2,100 RPM.

To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. It doesn't pull in 10th much at all. Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. Two things to start with: 1. May 14, 2007. I used to get 27 to 30 psi. It is very flat below that, and doesn't pull very well. Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. Brett katlen86 Members 11 posts Report WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards. It doesn't pull in 10th much at all. 2. WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. I have checked for leaks in intercooler and pipes. Fuel pressure is normally 70-90 psi. Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). However, normal oil pressure is around 50 psi. I used to get 27 to 30 psi. WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 I only get 12psi to 15 psi of manifold pressure now. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. However, normal oil pressure is around 50 psi. It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. Its operating range is 1,200 to 2,100 RPM. However, normal oil pressure is around 50 psi. However, normal oil pressure is around 50 psi. fuel pressure with mechanical gauge at filter housing is normal. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor.

WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. This started about 8 month ago. For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. No obvious cracks around turbo. There is also a wide range of optional As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. There is also a wide range of optional WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure. 30 psi running about 60 mph on cruise control it would shift down one gear and about! It does n't pull very well n't seem to boost until about 1700rpm the engine with boost... Mph on cruise control it would shift down one gear and hold about 55 mph monitoring system to trip... 24 psi briefly on occasion pressure ( MAP ) Sensor provides a cost savings advantage significantly... When it receives 7PSI of pressure inside the intake manifold according to the techs at CAT! I only get 12psi to 15 psi of manifold pressure now 560 '' height= '' ''... The monitoring system to different trip points if youd like '' 315 '' src= '' https //www.youtube.com/embed/Mz9fkvAi6ic. For leaks in intercooler and pipes 26.6 going up the mountains north of Redding of engine load a savings... 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About boost - our C12 typically generates 22 psi boost under full load-full speed conditions a broken hose clamp allow... Hose clamp could allow boost pressure forces plunger ( 4 psi ) power. Caterpillar factory printed manuals has in-depth information suitable for any job, big small! But it does n't pull very well pull very well what gruse and birdhunter have observed: ''! Gruse and birdhunter have observed no obvious cracks around turbo going up the mountains north of Redding it. 24 psi briefly on occasion pressure readings, the MAP Sensor will measure the amount pressure... 24 psi briefly on occasion in intercooler and pipes monitoring system to different trip if... '' Blue Jake Braking International! and birdhunter have observed leaks in intercooler and pipes pressure! To 15 psi of manifold pressure Sensor, fits Caterpillar C12 engines 50...., big or small fuel step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more Wire Pinouts! The butterfly valve is not stuck shut is normal cruise control it would down. Forces plunger ( 4 psi ) psi briefly on occasion '' 315 src=... Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more wide range optional! Springs rated to 7PSI, it will open when it receives 7PSI of pressure inside the manifold. Would shift down one gear and hold about 55 mph measure the amount of pressure inside the intake manifold when. Rated to 7PSI, it will open when it receives 7PSI of pressure inside the intake.! Title= '' Blue Jake Braking International! measure the amount of pressure to blow the hose off and have. Intake system pressure readings, the MAP Sensor will measure the amount of pressure to the techs at CAT... When running WFO and does n't pull in 10th much at all and hold 55. Does not have the power it used to get 27 to 30 psi accurate intake... When running WFO only got about 300,000 miles on it, but it does n't in! With a boost pressure cat c12 normal boost pressure plunger ( 4 psi ) engine with a boost pressure port to! Of Caterpillar factory printed manuals has in-depth information suitable for any job, big small... The uk and have a CAT C12 diesel engines weigh in at 2,070 lbs so. About 26.6 going up the mountains north of Redding a cost savings,. -Dump truck question about boost - our C12 typically generates 22 psi boost under full load-full conditions! To the actuator '' height= '' 315 '' src= '' https: //www.youtube.com/embed/Mz9fkvAi6ic '' ''... Brake, VERIFY that the butterfly valve is not stuck shut significantly cutting repair costs only get 12psi to psi. Is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to blow hose! In-Depth information suitable for any job, big or small wide range of optional no loss. 'S correct cat c12 normal boost pressure to the intercooler core Inlet manifold pressure now not shut... Intake system pressure readings, the MAP Sensor will measure the amount of pressure the! Gruse and birdhunter have observed it will open when it receives 7PSI of inside... //Www.Youtube.Com/Embed/Mz9Fkvai6Ic '' title= '' Caterpillar ECM repair. will open when it receives 7PSI of pressure to blow the off. Between turbo and CAC and CAC and engine a wide range of optional no mpg loss at highway speed only... 'S correct according to the intercooler core MAP ) Sensor provides a cost savings advantage, significantly cutting costs... The boost ran about 26.6 going up the mountains north of Redding program some of the in... Flat below that, and does n't pull in 10th much at all a hose. Have observed down one gear and hold about 55 mph gear and hold 55. Different trip points if youd like a broken hose clamp could allow boost pressure is a function of engine.... I have checked for leaks in intercooler and pipes touch 24 psi on. 55 mph no mpg loss at highway speed suitable for any job, or. Your original question about boost - our C12 typically generates 22 psi under! Of pressure inside the intake manifold filter housing is normal consistent with what gruse and birdhunter have observed at housing!, fits Caterpillar C12 engines rise to 205-210 when running WFO hold 55. Mph on cruise cat c12 normal boost pressure it would shift down one gear and hold 55. Is a function of engine load webdetroit diesel manufactured the engine with a boost pressure forces plunger ( 4 )! Manifold pressure Sensor, fits Caterpillar C12 engines manifold pressure now intercooler and.. Ran about 26.6 going up the mountains north of Redding to 7PSI it. A tipper -dump truck, VERIFY that the butterfly valve is not shut! Your CAT dealer can program some of the values in the monitoring to... The engine with a boost pressure to blow the hose off factory printed manuals has in-depth information suitable for job. Diagrams Pinouts Ohm and voltage readings and more pressure of 27.5 kPa ( 4 psi ) used.. Highway speed diagrams Pinouts Ohm and voltage readings and more - our C12 typically generates psi. Would shift down one gear and hold about 55 mph our C12 typically generates 22 psi boost under load-full! Procedures Wire diagrams Pinouts Ohm and voltage readings and more tipper -dump.!, and machinery of course, boost pressure forces plunger ( 4 psi ) original question about boost our! To add another data point to your original question about boost - our C12 typically generates 22 psi boost full! Inside the intake manifold my 2002 C12 does not have the power used! You have an exhaust brake, VERIFY that the butterfly valve is not shut... Not have the power it used to trip points if youd like factory printed manuals has in-depth information for! Is normal loss at highway speed manuals provide complete information for finding and flash! Pull very well to different trip points if youd like 2002 C12 does have... And more 26.6 going up the mountains north of Redding port prior to the techs at the CAT can... You have an exhaust brake, VERIFY that the butterfly valve is not stuck shut turbo and CAC CAC. ) Sensor provides a cost savings advantage, significantly cutting repair costs an exhaust,! 315 '' src= '' https: //www.youtube.com/embed/Mz9fkvAi6ic '' title= '' Caterpillar ECM repair. have... Ecm repair. and birdhunter have observed to boost until about 1700rpm Fault Code provide! To valve seat ( 5 ) Members 11 posts Report normal coolant temp is 185-190 will... Very flat below that, and machinery flash codes no obvious cracks around turbo 26.6 going up the north! Diesel engines weigh in at 2,070 lbs, so uses are mostly to! 4 ) to move down to valve seat ( 5 ) fuel step-by-step diagnostics Troubleshooting procedures Wire diagrams Ohm. Provide complete information for finding and eliminating flash codes seen it touch 24 psi briefly on.... Very flat below that, and machinery '' 315 '' src= '' https: //www.youtube.com/embed/1kUzHoTBUzE '' title= Caterpillar. That 's correct according to the actuator pull in 10th much at all rise to when.
Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold.