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chico
New User
Apr 6, 2010, 8:14 PM
Post #1 of 2
(1485 views)
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1999 pontiac grand am
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 my car is trowing gas from the mofler I switch the fuel injectors 2 times from the pick n pull I also change the pressure regulator and the spark plugs too can you give a tip.
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James_85_jr
User
Apr 13, 2010, 9:40 PM
Post #2 of 2
(1470 views)
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Re: 1999 pontiac grand am
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you may want to check the throttle position sensor with a ohm meter also check the map sensor and o2 sensor those are the main sensors that control fuel air mixture. if all those are good check the temp sensor on the air intake hose and maf sensor if equiped with one
try to pull codes from the computer if you can they can tell you alot about what is going on with the car also
hope this helps 
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