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Question about Oxygen sensors?
I already posted a rather wordy question under Mitsubishi but I wanted to post one in a more general section. Can someone tell me how many oxygen sensors are in a 2001 Mitsubishi Montero? My daughter is getting an expensive jacking around by a dealership with a "check engine light" problem. Thank You in advance!
Thanks mrknight, she was charged $2000 before they changed ANY sensors while supposedly fixing the engine check light.
2 Answers
- mrknightii2000Lv 41 decade agoFavorite Answer
Typically four. Two primarily for fuel trim, before the catalytic converters and two for checking the catalytic converter efficiency (mounted after).
They can be typically $100-$150 each and 0.5 to 1.0 to replace each, not including diagnostic charges.
So, it may seem high, but a $300 bill for diagnostics plus parts and labor to replace just ONE O2 sensor would be fair and typical.
