O2 Sensor No Activity

paulturner911 · Post by **paulturner911** » Fri Jun 05, 2009 12:14 pm

I get a CEL for primary O2 reading no activity. I have tuned the car, the A/F from k pro reads slightly different from the wide band on the dyno. Should i get a new o2 or could it be a connection?

Post by **Spunkster** » Fri Jun 05, 2009 12:39 pm

Does the stock wideband read at all?

paulturner911 · Post by **paulturner911** » Tue Jun 09, 2009 10:09 am

Yes, it will read untill the car gets warm, then it stays stuck. It worked for months, started getting lazy after the dyno. Now it seems to go out every time I drive the car. O would think it is a lazy sensor gone bad, but Id hate to spend the cheese and find that it is a loose connection. If it is a connection why would it work when I first start the car? Any input would be good.

Post by **Spunkster** » Tue Jun 09, 2009 10:23 am

Try your sensor in someone elses car.

paulturner911 · Post by **paulturner911** » Tue Jun 09, 2009 11:41 am

ok, will do! do any widebands tie in with the kpro? Can I get say...an AEM gauge and not the sending unit, but wire it into the ecu?