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Sons V70 does not display Check Engine V70-XC70 1998

posted by  740madness on  Tue Jan 24 18:59 CST 2012
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last visit: Sun Jun 29 21:07 CST 2014
[RELATED]

Know that the cel works goes on when ignition is on

When he bought the car the guy said that the key cylinder should be replaced because when you start the car need to back off a bit to get head lights working etc.

I think the previous owner jerry-riked the cel so it does not display when error codes occur. Unsure how he did but sure seems like it.

Son bought a odbII monitor. This is after we failed inspect.

Don't remember specific #'s but
MaF sensor
Large Evap leak

We replaced MAF and one of the hoses on the canister was detached completely, attached codes gone.

Now he is reading a MAP and bank 1 pre-cat 02 sensor.

Still the check engine light does not come on.

Is it possible to disable the feed to the cel?

madness





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