afx

I am having trouble with my car where when I try to turn it on it starts then just truns off. If I give it gas I can keep it going, but right when I stop giving it gas it will die. I checked the injectors, and the plug wires, they both work fine. I am not sure what else I should check. All the vacuum lines seem fine.

Cass944

that kinda happened to me once. make sure the air flow sensor is plugged in on the back. i took out my airbox once and forgot to plug it back in and it did something similar to that.

SidViscous

The experts will correct me if I'm wrong. But on most fuel injected cars there is a pre-programmed fuel map to start the car. Then the sensors take over and the DME uses that data.

So a sensor could be bad. O2, or the air flow as mentioned.

afx

I was thinking that the O2 sensor could be causing some trouble... I will try and test the tomorrow. I will also check the voltages on the AFM.

adrial

Disconnect the AFM, it should idle with it disconnected, but won't rev.

If it still doesn't idle after you unplug the AFM...I'd say 90% cross out the AFM.

natejw

same thing happened to me it turned out to be the airflow meter. the easiest way to check it is unplug it and it should start but not rev or if you have an ohm meter you can check it that way too

Micah

Also, check to make sure your intake boot has a tight fit.


Micah

sm

What about a badly stuck Idle Control Valve?

ERAU-944

you may have forgot to put one of the larger vacuum tubes on... i did this and it exhibited the same symptoms. check the plug on the AFM, and double and triple check ALL the vac/intake tubes and things like that.

good luck,
Mike

jason952

you know,
It would be cool if we could put together an if-then series about these common type of questions. Like a list of rule-outs for diagnoses based on what the car is doing, does this make sense?

Jason

Olli Snellman

Also busted fuel pressure regulator causes symptoms like this.