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I have an 02 chevy cavalier and im getting the above codes...every site i look at is different. can you help?
Vehicle: 2002 Chevy Cavalier 2.2L dohc

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P0172 Fuel trim too rich Bank 1

C1254 KAM (keep alive memory)

C1275 ABS disabled

The running rich condition would need to be checked first, P0172, The MAF (mass air flow sensor) can cause this condition as well as a pluged air filter, there are 2 area that should be inspected, the air filter and the fuel pressure regulator,

​ The fuel pressure regulator should be checked, it can seep fuel into the intake from its vacuum connection would  cause a running rich condition

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