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Old 06-17-2010   #10
merc3065
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Join Date: Aug 2006
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Re: code 34 and 36 diagnostics...

Its a very fine platinum wire inside the MAF. Explains why its super costly...

But, 34, MAF is reading high voltage when it shouldn't.
Check the relay, replace it, they are like 12 bucks at partsource or napa.
Replace the burn off relay (code 36), I believe that the MAF relay and the burnoff are the same.

Verify that theres no odd buildup on the connectors at the relays.
Check the MAF wiring at the MAF sensor. Same same check for buildup or damage.

If it still throws the codes after the relays are replaced, replace the MAF or swap it out with a known working one to test.
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