so guys just a quickie , had car hooked up to laptop the other day for random check up, O2 bank 1 and 2 are at different levels throughout the rev range by about 50% and the lower reading one is slower to respond im assuming faulty O2 sensor? maybe nothing to worry about

 

thanks guys :)

Unplug the O2 sensors & measure the AFR on both banks at 2500rpm. If they are almost equal (probably around 13.8:1, with the driver's side being slightly leaner than the passenger side), then there are no issues in the fuelling.

 

Reconnect the O2 sensors and measure AFR once again at 2500rpm. this time it should be around 14.7:1. If that is the case, then there are no issues with the O2 sensors.

That could be something worth doing anyway just to check the cars are fuelling right maybe. Is that an easy check Noel?

That could be something worth doing anyway just to check the cars are fuelling right maybe. Is that an easy check Noel?

 

With a wideband, yes. Well, it's the only way to check the fuelling properly.

oh awesome thanks man ill give it a go tomorrow :D