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Car randomly doesn't feel like starting and now stalls randomly WTF IS GOING ON *Repost

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Old 03-05-2007, 12:59 PM
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Default Car randomly doesn't feel like starting and now stalls randomly WTF IS GOING ON *Repost

A week ago I posted about my car that doesn't start sometimes, but if you leave it alone for a while it starts up again. It doesn't throw any VAG codes, battery is good, there is gas and it turns over but it does not start sometimes.

Well after driving it for a while, this problem went away and now a new problem.

Today I was driving it stalled on me on a light, to work. It wasn't a jerky stall the rpm just dropped and the car stalled. The radio was still going and the battery was good so I just fired it up and it drove fine.

Driving back from work I made a hard right at around 35mph. I was coming out of the turn in 2nd and when I gas out of the turn the car stalled, and the oil light flash for one second. The car is stalled and it won't start for like 2 min, and then after it started up again and everything went fine.

When the car stalls all the electronics work in the car.

There are still no VAG error codes or anything. Whatever this part is I can narrow from my newbie deduction that it should to be an electrical failure somewhere. Mechanical parts do not have such intermediate failures stages. The smooth stalls instead of a jerky stall have leaded me to believe it is electrical.

If I can't figure out, all I can do is drive it until the part fails so I can trace at least what is going on.

WTH IS HAPPENING THIS IS TRIPPING ME OUT KNOWING THAT MY CAR HAS RANDOM CHANCES OF STARTING, AND STALLING.



Sorry for the CAPS, but I think most people would freak driving a car like that.
Old 03-05-2007, 01:45 PM
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What MY are you?
Old 03-05-2007, 01:52 PM
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Audi A4 99.5 AEB Quattro Manual
Old 03-05-2007, 01:56 PM
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Default My only guess is a fried ECU.... I really dont know what else it could be.

Very odd that your not throwing any codes from this.
Old 03-05-2007, 02:19 PM
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Default Look at the MAF and coolant temp readings at startup. Does this occur during the first few min?

If your coolant temp sensor is crapping out,you will run overly rich = stalling or starting issues.

Bad air measurement = same

You oil light flashed?? eek. that is another issue all together. Oil pump/sludge maybe an issue
Old 03-05-2007, 02:20 PM
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noobs... your only guess? Come on... tisk tisk
Old 03-05-2007, 02:24 PM
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My guess is fuel pump.
Old 03-05-2007, 02:47 PM
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Car stalls usually half way into a drive.
Old 03-05-2007, 02:47 PM
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A fuel pump failure usually or I never heard of failing in such a funky way.
Old 03-05-2007, 02:48 PM
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I have been usuing a larger capacity oil fiter but regardless i am doing an RX treatment with kero.


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