87 TII
3" down pipe to Racing Beat cat back
K&N filter/fairly open air box
94k
Has been having a flossing problem for 4 months or so now

The car has been flawless until the cold weather hit. Cold start it idles around 2k and is 10.5-11.0 on my afr gauge. Until the car warms up it will rev by itself to 3k and act like the throttle is stuck and run from 10.0-10.8, if I put the car in say 3 gear it acts like cruise control. Letting off the throttle never yields a "lean" reading on my afr until it is full warm. It never did this in the winter last year. My idle circuit has been acting strange lately also.

The water temp has also been much more erratic. It warms up much quicker and does not cool down as well as it used to. It is full of water and the clutch fan is working properly.

Sorry for the lengthy read, thanks for the help.

 

Nobody?

 

I'm having the same issue, only does it when hot starting the car for me though. A local guy was having the same problem and he fixed it by cleaning all the grounds and cleaning the ecu of any corrosion and the plugs going to the ecu. Might be worth a shot but have not found any other way to fix it .