Question about 1991 Pontiac Firebird

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My car was running i turned it off and now it wont start it will crank but it wont fire up i keep getting a code 12 what does that mean

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Code 12 is a all clear code this code on 95 and older. It should be at the beginning and the ending of the code collection

Posted on Mar 16, 2011

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3 Answers

Why won't it start?


Air and fuel filter,tune up,battery and connection ,

Aug 02, 2015 | 2005 Jeep Grand Cherokee

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Will a cam shaft senor keep my car from cranking when u cut it off I've changed both crank senor on it an it still want crank with out puting some quick start spray n it its a 2002 Buick century


when you say crank ,,, that means engine does not turn over when you turn the key to start position ,,,, as you said you use start spray this means engine is turning over ,,,,, i think you mean engine turns over but wont start,,,,,,, cam sensor will cause engine to be slower to start but you would be better to get the car plugged in to see what the fault codes are in the system ,,, also if no codes the data list of the engine sensors will show up a faulty sensor ,,, to be honest there is no point in spending your hard earned cash putting in sensors until you carry out a diagnostic check and only have to change the faulty sensor that shows up...best of luck

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2005 dodge durango wont turn over


a 05/06 Jeep Dodge, engine swap, really? you posted to jeep...
no engines stated, there are many used . USA car?
won't crank robustly?
or cranks perfectly but wont start and run?

turns over means , zero (so does NO FIRE)

many parts turn over to attain a start and run condition.
RUNNING is the end goal.

if any car fails to start and run and the starting system is good.
then we do this. (gasoline cars, )
http://www.youtube.com/watch?v=064Ilsz8Fzg&NR=1&feature=fvwp


scotty assumes the engine is good, (has compression x num cyl)
some arent

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when you say -turn over do you mean firing-turning over to me means the starter motor is cranking or turning over-firing is when combustion happens in the cylinders-as far as the cranking continuing-try some wd40 in the ignition switch-it may be hanging up-Denny

Nov 22, 2013 | Pontiac Grand Am Cars & Trucks

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Error code 12 on 94 Toyota Celica


poo12 code is A camshaft position-overretarded on bank one you may want to take it into a garage

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1992 jeep cherokee sport 2 door 4.0 inline six. Jeep was running fine except when you went to start it it took two cranks sometimes three then would start. Went to start it the other day and it took alot...


Sounds more like a timing problem than an O2 Sensor. Distributor out of Sync would be my guess. It ran better at Higher idles because the timing belt/chain was tight from tension at low idle the timing was off which caused your problems. Now the belt is either broken or so loose the timing is out and the vehicle won't fire. If it has a Distributor cap remove it and watch the rotor. If it turns the belt is intact but Timing may still be off.

Dec 27, 2010 | 1992 Jeep Cherokee Limited

1 Answer

Battery and starter good but wont turn over


Do you mean it will crank over and not start or do you mean it wont crank.

If its turning then spray some brake cleaner in the throttle body or use some quick start. If it fires your fuel pump failed, If it does not fire you will need to check for codes. You most likely have an ignition issue.

Not knowing what year car you have leaves alot to be guessed at. But even so I would still recommend you do what I mentioned.

Feb 19, 2010 | Pontiac Firebird Cars & Trucks

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