mortymower

I have an 87 951 with an autothority maf and a k27. Sometimes my idle is terrible and sometimes its okay but im thinking that is related to the water temp sensor because its only terrible after it has been sitting for long enough to start to cool but not to fully cool down. but my main question is that if you just push the throttle a tiny bit, then the car begins to stumble and run rich, so is this the TPS?

chris951

It could be your tps, but it could also be your MAF sensor.