Ok guys, i recently had my car on the dyno and the tuner said my oxygen sensor isn't working, he tested it by having the car in neutral on the dyno and just holding the car at constant revs and he said it wasn't working properly.
So at the momet its currently running open loop on the power fc cause the 02 sensor is switched off , which with these currnet fuel prices is lets just say putting a nasty dent in my wallet!
Now the 02 sensor is second hand but was definitely working when the last person had it, the exact same thing was happening with my old 02 sensor which was only a year old which i got brand new which is perhaps leading me to think it could be something else?????????
On my power fc once the car is warm and is idling it reads 0.74 volts or there abouts whether or not i have the power fc set to closed loop or not.
Any ideas would be very helpful!
Should i be running the car with the 02 sensor on or off in this situation?