: 94 STS needs help



Brian Weir
07-18-06, 10:07 AM
I have a 94 STS with 62,000 miles, great car. Recently it started stalling at traffic lights, and hesitating while cruising on the highway. While in park ,if I increasc RPM's to 1500 and hold gas pedal steady, the RPM's fluctuate up to 2500 and back down to 1500, and it feels like the pedal goes down a litte by itself.
I've changed the fuel filter and cleaned the throttle body,but no improvement. Here are the codes ,all in history,P025,P095,P044.
Any advice? Thanks,this is a great website!

eldorado1
07-18-06, 12:24 PM
Does it miss?

Brian Weir
07-18-06, 10:18 PM
Yes,and tonight I got a "service engine soon" message on the drive home.

thu
07-18-06, 11:50 PM
P025: (Ignition Control Module) 24x Reference Low Indicator
P044: Right Oxygen Sensor Signal Lean
P095: Engine Stall Detected

I'd suspect something wrong with the ignition. Judging from your symptoms, I'd say ignition issues are likely.

Brian Weir
07-29-06, 03:28 PM
The car is at the dealer now. They tell me the wiring harness that goes to the sensors in the plenum are oil saturated and there should be no oil in this area (under the plastic n* engine cover).Also the sensor in the plenum isn't reading the right ambient temperature (-34 f ). Any of you experienced guys have an idea where the oil is coming from? I authorized the mechanic two hours to diagnose the problem,@$90per hr. OUCH, can't keep THAT up much longer.Wish I had been born rich instead of so darn good lookin'!

EcSTSatic
07-29-06, 08:31 PM
I have a 94 STS with 62,000 miles, great car. Recently it started stalling at traffic lights, and hesitating while cruising on the highway. While in park ,if I increasc RPM's to 1500 and hold gas pedal steady, the RPM's fluctuate up to 2500 and back down to 1500, and it feels like the pedal goes down a litte by itself.
I've changed the fuel filter and cleaned the throttle body,but no improvement. Here are the codes ,all in history,P025,P095,P044.
Any advice? Thanks,this is a great website!

Is this the same 94 STS that offered to tow a '99 Deville over 112MPH!!

Just funnin' with ya'. I hope you figure it out. :thumbsup: