QuestionI took in my 1999 Ranger Rover for a Smog Check, as required by the State of California. However it fail for Malfunction Indicator Light; fault code P1175 and P1172. Is this a computer malfunction error since my indicator lights are working?
AnswerHi Melton,
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Melton, if it's wiring to your Oxygen sensors, the price is probably just the labour + a few bucks for the wire patch. If it's the O2 sensors, then it's $200 to $300 plus labour. If it's your injectors, then it's even higher $700 or more. A LR mechanic with a testbook diagnostic system can usually find the fault quickly.
Not the best news to get after failing an emissions test. I use to dread those tests when I lived in Boston. I never knew if the failure was caused by my car or the shady mechanic who wants a hefty repair bill.
Regards,
JohnMc
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firstly, the state vehicle inspection indicates a vehicle fault code was detected during the testing procedure. It does not translate into indicator lights (turn signals).
Second, the codes on you Rangie indicate fuel deliver is "too rich for Bank A and Bank B" (P1172) and that no signal or poor signal was received from your Oxygen sensors (P1175).
My guess is that in your state, ANY vehicle that has OBDII codes (like the ones you reported) automatically fail your test.
You'll have to get the vehicle serviced by a LR mechanic who can trace where the problem lies. Could be a faulty 02 sensor or a filthy electric wire to the O2 sensor(s).
Best of luck,
JohnMc
