Question about Oldsmobile Cutlass Supreme

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I have a 93 cutlass supreme with a m3.1L and i have about 14 codes that come back right when they are cleared.i have already tried two diffrent pcm's and even the prom inside them and still they come back. the car runs fine but hesitates to shift out of first and second gear.some of the codes are 36 IG 24x signal error,41 est line error, 42 by pass line error,14 coolant temp signal low or short,15 coolant temp signal high or open,33 map sensor circuit to high,34map sensor circuit to low,51 ecm prom error,96 trans system voltage low,82 ignition control 3x signal error,79 trans temp too hot,80 trans component slipping

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Hi
Check the air mass sensor or air mass meter, when faulty they can throw off many other parts and then return loads of codes when faulty.

You can just do a tester take the air mass sensor out and clean it with carburettor cleaner, replace it and see if that helps. It's worth a try and wont cost you anything.

Also check the battery connections mainly the earth connection, a loose or poor connection can trigger codes also as when it is connecting and disconnecting the sensors think they are faulty. and would also cause low/high circuits with power change. and voltage to low.

Hope this helps
Regards
Dan

Posted on Feb 12, 2010

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