11 Tips on Engine Troubleshooting ②

② O2 Sensor Malfunction : R32 R33 R34


There are some problems like idling is not stable or not accelerating smoothly.

It is similar problems as with worn mass air flow sensor a lot.

There may be case that smoking from muffler or burn too much gas.

In that case, O2 sensor may not be working properly due to carbon is jammed.

Engine sometimes does not pick-up smoothly due to a coupler of harness is pulled off.

You need to check the voltage whether the problem is sensor malfunction on not.


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