rx7 SE

iTrader: (5)

I recently bougt an autometer afr gauge so i could have a general idea if i'm running lean or rich under boost. Got it, installed it, and everything looked good. Then i noticed when i started the car up it reads lean as far as it can go and then it slowly climbs up as after about 3-5 minutes. The car in the meantime is idling fine and dandy though. I talked to my shop teacher about it and he said it might be my coolant temp sensor. And actually i know for a fact my cts is bad.... but could that be causing this problem or is my gauge just wack?

alexdimen

iTrader: (13)

conventional oxygen sensors are useless until they are at operating temp

91verty

And not to mention during the warm up process, the motor is running lean to begin with.

But i second alexdemin's theory too.

rx7 SE

iTrader: (5)

o, cool.... so its not uncommon i take it. Appreciate the help guys! thanks....
Anthony