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new O2 sensor

jarredsoon

Gold Member
Hey Guys, I have a question for ya.

My car would go in and out of closed loop after it was warm, the decimal point between the zeros on the scanmaster would blink for a while, then hold steady for a while, then blink for a while. So I put in a new denso O2 sensor and now my crosscounts are slow to change and only change by about 10-20 at a time. and if the car is just idling the cc will hold at a very low number. Also the decimal point still blinks sometimes and hold sometimes through out regular city driving.

Is my problem something other than my O2 sensor??

Any body know what is going on here, car does perform well, but I was just haveing some stalling issues but they have seemed to resolve themselves by tapping the maf. Anyways..... what do you guys thinK?

THanks, Jarred.
 
I assume you have a TT chip...which will be an open loop idle. So, the car will go into closed loop above idle(in gear) and go into open loop as you idle down at a light or whatever.

And it could very well idle in open loop at around 700-850mv till you pull away from an idle.

I wouldn't get too worried about crosscounts as this is typical of an open loop chip to hover on the "fat" side of 450mv.
 
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