Apr 02, 2018· 2010 buick enclave starts then dies , hard starting, few tries with key then it will start for like 2 seconds and die, fuel pressure is good, tried swapping throttle body still same issue, ... Sounds like a possible mass air flow sensor issue. Try unplugging it, then fire it up and see if it will start and idle on it''s own. ... if the pump ...
Mar 14, 2018· Oil change fuel pump and filter in tank change spark plug change wires and coils. Air filter mass air flow changed. I now have one code only that keeps popping up with rough idle random misfire code p0300 thats the only code. Oh replaced and relearned the ckp sensor. This thing has stomped my hined end!
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May 10, 2021· Too much fuel and not enough air is considered rich – too much air and not enough fuel is considered lean. The P0172 code indicates that the ECM/PCM is or has detected a rich condition. The ECM/PCM and the O2 sensor are all about keeping things balanced in the combustion chamber. If the mixture drifts too far out of balance, a code is stored.
OBDII GM Code Definitions. Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here. Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles.
Apr 24, 2019· – A defective mass air flow sensor. This is less common, but it can cause your car to try to draw too much air, which can be the root cause of an overheated air intake. – Faulty PCM. This is the most expensive possibility, but normally a faulty PCM will be doing more than just misreading the air temperature.
The mass air flow (MAF) sensor, part of your vehicle’s electronic fuel injection system, is responsible for calculating the total amount of air entering the engine. A faulty MAF sensor can cause your vehicle to run too rich or run too lean. You’ll notice if the tailpipes eject black smoke or when the engine runs rough or backfires.
P0102 Mass or Volume Air Flow Circuit Low Input. P0103 Mass or Volume Air Flow Circuit High Input. P0104 Mass or Volume Air Flow Circuit Intermittent see our "articles" link for additional help with these generic check engine light codes. P0105 Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction.
Jan 08, 2016· A MAF sensor that behaves like this will require replacement. Before replacing the sensor, however, the rest of the circuit should be checked for proper operation. If the circuit has an issue, replacing the sensor will not solve your problem. 3. Rough idle or stalls. A completely failed MAF sensor will not send any airflow information to the PCM.
Oct 22, 2018· 03/31/2021 10/22/2018. The symptoms of a bad mass air flow sensor include low engine power, poor fuel economy, an engine that won’t start, a check engine light on the dash and a gas smell from the exhaust fumes. A bad mass air flow sensor is often the likely culprit if your car isn’t running as it should. The job of the mass air flow sensor ...
On the 3800 V6, the camshaft position sensor is located behind the water pump pulley. If you were to look at the pulley straight on, it is at about the 9 o''clock position. Where is the crank sensor located at. The CKP Crankshaft Position Sensor, is located behind the crank pulley, It will need to be removed to get to the sensor.
A sensor out of calibration may rise too quickly in reaction to the rpm. This could cause an acceleration problem. Example 3 A sensor with a dirty sensing wire or not measuring all the air (air leak downstream) may rise too slowly. Example 4 Another approach would be to graph both the TPS and the MAF sensor because they should essentially produce a
Sep 24, 2018· P0308. And P0300. I put new mass air flow sensor on it with no change and replaced fuel injector on cylinder no change. Reply. Rita Horton says: 4 September, 2020 at 9:41 am. Changed everything in my 2007 VE jetta . ... Code P0175 Definition Bank 2 has too much fuel or not enough air. ... Air Fuel Mixture Control P0154 – Meaning ...
Oct 15, 2021· Diagnostic trouble code (DTC) P0102 isn’t in every vehicle’s code library, but whenever it appears it means “Mass Air Flow (MAF) Circuit Low.”. The code is set when the ECM/PCM perceives a problem with the mass airflow (MAF) sensor’s performance. The MAF sensor is mounted between the air filter and the throttle body.
Answer: Most likely, the MAF sensor is bad. Question: My mass air flow sensor on an 88 Camaro reads 5volt reference between signal and ground while running and unplugged, on the ECM side, at idle. Shouldn''t the mass air flow sensor dictate the voltage going out to the ECM? While plugged in, there is erratic nondetectable voltage, on/off ...
Jul 29, 2020· Along with the transmission control module being a problem, the check engine light can come on due to a poor fuel economy, oxygen sensor failing, mass air flow sensor failing, a loose fuel cap, catalytic converter failure, spark plug and ignition coil issues, bad spark plug wires, issues with an aftermarket alarm, and a vacuum leak.
Nov 03, 2021· The TPS sensor and the accelerator pedal sensor tracks the gas pedal’s movement, which sends signals to the car’s computer. The computer then uses that information to adjust the airfuel mixture and the throttle body valve according to the gas pedal position, current speed, the air temperature, MAF reading, and RPM.