Subject	O2 sensor; a few tips
Posted by	yobobrox on June 13, 2008 at 8:55 PM
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In Reply To	Running RICH!! posted by action on June 13, 2008 at 07:04 PM
Message	Put the car in O2 diagnostic mode (Mode II, per the faq under 'Pages -> Tech -> ECU Diagnostics'). Likely, the diagnostic test will show that the sensors aren't reading properly (either flashing too quickly or, most likely, too slowly). Sometimes this is simply from carbon buildup that can be burnt off. Run the normal ecu diagnostics (Mode I) to make sure the coolant temperature sensor is working. In case there is carbon build up, the following may or may not be a permanent solution, but it's worth a try: let the car warm up for several minutes, then go for a drive and keep the rpms steady between 3-4k rpms. Keep an eye on the temp gauge just in case you have any cooling issues. Do this for a constant 5 minutes. Then drive normally for a few minutes to cool the car off. Park and retest the O2 sensors. If there's no change, get new O2's now and stop wasting gas and dirtying up the motor.
Follow Ups	Running RICH!! - action 19:04:28 06/13/08 run diagnostic for ecu codes...more than likely - twinturbineZ 19:12:22 06/13/08 O2 sensor; a few tips - yobobrox 20:55:26 06/13/08 Re: Running RICH!! - sandeep_Z 22:17:27 06/14/08 Re: Running RICH!! - twin3037 17:51:25 06/15/08
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