Was running but would not pick up speed when pressing gas half throttle or more cleaned mass air flow sensor ran better for about 10 miles than stalled would not start and stay running fires then stalls
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
i had a van do this same thing to a tee turned out to be a broken key pin in the harmonic balencer causing the timing to ****** replaced balencer and ran like a dream there is a crank sensor grid on the balencer when the key pin broke it trew the timing off
clean the MAF sensor heated wires inside MAF with carb cleaner gently with a toothbush first. Then disconnect battery for 1 hour and reconnect and drive for 10 miles so computer can relearn clean MAF sensor.
Mass Air Flow (MAF) Sensor
The mass air flow sensor (MAF sensor) (12B579) :
is located between the engine air cleaner (ACL) (9600) and the throttle body (9E926) .
uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool.
sends an analog voltage signal to the powertrain control module (PCM) (12A650) to determine the intake air mass. The powertrain control module will then calculate the required fuel injector pulse width in order to provide the desired air/fuel ratio.
The mass air flow sensor hot wire sensing element and housing are calibrated as a unit and must be serviced as a complete assembly.
Hi,verify throttle cable is ok and connection at throttle body is good.If cable is ok,you need to do diagnostics on the computer..Every thing is speculation without data from computer.But i would check the throttle position sensor and the mass air flow sensor.Sometimes the maf sensors elements get dirty and cant read the correct amount of air flow entering engine.If this is the case,you can clean the elements with brake clean...Good Luck!!!