loss of power

trife86

Registered User
ill try to keep this simple

when car is cold i get in idle sits at a nice 750rpm and has a lot of power to spin the tires no problemo. after 5min or so idle in gear bumps around 500 - 550rpm and i have a big loss of power. and engine doesnt sound as smooth.

i have no idea what it can be. the car has a good tuneup right now. new motor mounts. new plugs/wire's. i thought that was the cause it wasnt. heat is also not the cause. last thing i can think of is o2 sensors gone mad?

i have hooked up the eec to a scanner and it spits about 25 random codes that make no sense. any idea's which can cause this?
 
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