A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

chip causes starting problems?

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Old Aug 14, 2004 | 08:17 PM
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Default chip causes starting problems?

well, I put in my new (chipped) ECU last night, did the TBA and all, started it up, and took it for a spin. everything looked good...

this morning, same thing, everything a-ok...

this evening, I was leaving to go to a friends house...I started the car, backed up about 2 feet, and the car randomly stalled. I tried starting it again, and the engine turned over but wouldn't start. I turned the key to off, back to 'on' for about 10 seconds, back to off, and started it again...and it worked fine.

Well, we went out for ice cream, and it did the same exact thing, except this time, it didn't even start the first time...but I repeated the process as before and it was ok.

Anyone know why it might be doing this? It's an APR chip if that makes any difference...

Car feels great chipped, but I'll have to return to stock if I'm constantly worrying about the car starting...

Thanks.
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Old Aug 14, 2004 | 08:41 PM
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Shep 1.8T's Avatar
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maybe some solder came loose. common enough to mention, but not common enough to be a real problem.
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Old Aug 14, 2004 | 08:42 PM
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if I were you I would throw in a stock ECU and ship it to APR for diagnosis.
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Old Aug 15, 2004 | 05:56 AM
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thanks, I still have the stocker, so I'll get the new one checked out
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Old Aug 15, 2004 | 07:35 AM
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Yep, bad solder joint stopped me.
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