QuestionThe car is a non- turbo. Thanks _ I do have the Haynes, just not a voltage meter. I'll try that route. I did switch out the air flow meter with a clean used one (exact year and make). Got the same results. If I prime it and hold the air flow door open, it starts up and idles fine. Give it gas - it dies. remove the item holding the air flow door open - it dies. Thanks anyway. Tom
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Followup To
Question -
Dave,
I have a 944 that has been sitting for about 2 years. It drove fine prior to me garaging it. When I got it out I did the standard clean up but no start. It cranks but nothing. I read your post on the Air Flow Meter and made sure it was clean. Here is what is happening. If I manually hold open up the doorway in the flow meter and prime it – the car starts right up. If I remove what’s holding the air flow meter door open – it slams and the car dies. If I try to give it gas while the air flow door is open – it dies. Basically, it will start and idle (only) as long as I prime it and hold the air flow door open. Confused and could use some advice. Tom
Answer -
Hi Tom,
That must be a bit frustrating to hear it idle...and that's it.
I'm glad the prior posting helped a bit, it sounds like your air flow meter is spotless. Now we have to make sure it actually works. There are some key electrical tests you can do if you have a voltage meter that displays volts and millivolts.
The sequence of the tests and the expected results are listed very nicely in a Haynes manual. The description is a bit lenghty to re-type here and the results depend on whether the car is turbo'd or not...and the picturtes really are helpful. I'd suggest you get one if you're going to be fiddling with the car. It'll soon pay for itself. Go ahead and look for a clean used one and you can get it less expensively than if you went to your local auto parts store ($25).
Here's a place to start:
http://www.bookfinder4u.com/IsbnSearch.aspx?isbn=1850106576&mode=direct
Let me know what you find.
Dave
AnswerHi Tom,
The only thing that makes sense at this point is that the wiring isn't attached to the air flow meter or the wiring is faulty, or the meter itself is bad.
Even intuitively, it seems unlikely that the wide open doorway would equate to idle speed. Rather, the wide open doorway should get you more like full throttle, right? And since the airflow meter is supposed to be sending its signal back to the computer, it's the computer that's telling the injectors to pulse at idle speed. It just doesn't make sense and I'm sorry I don't have a quick fix for you.
Dave
PS...your followup comment came in to me twice this morning, so for one of them you'll get a message that a duplicate question was entered.
