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940T No start 900

posted by  tedv on  Thu Dec 27 19:04 CST 2012
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last visit: Sat Oct 18 10:51 CST 2014
[RELATED]

Acquired a 1994 945T from a local dealer who had given up on it... 210K, decent car overall...

I thought the problem not serious. At first, at the lot, the car started, I drove it may be 1/4 mile when it started to choke, miss, etc, so I towed it home.

Since then, I can't quite get a decent start. When cold the car starts, barely, and stalls immediately. With each succeeding try the starts get worse (not a battery problem).

The OBD showed a bad O2 sensor which I replaced. The spark plugs get WET, oil was full of gas, may be 1 1/2 quart overfilled, so I changed oil and filter. I found a split in the driver's side intercooler hose which I repaired until I get a new one. The air filter was dirty so I changed it.. I changed the FPR. I cleaned the throttle body. I replaced the idle control valve. I swapped the MAFS with a known good one. I checked the cap and rotor, resealed the distributor while I was at it. I tested the injectors, they spray fine, and do not leak--I even swapped them with some other ones.

So,now I have strong spark, I have well charged battery, I have fuel, too much apparently. I am pretty sure I do not have a massive air leak anymore. I seem to have a RUNNING TOO RICH situation but I am not sure what is causing it... I have not addressed timing yet which would be next. Any suggestions are welcome.






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