[Rip]

first off hello i am new here have 2 g6s probly spend alot of time here

ok 07, 2.4 ,41,ooo miles have a p1174 code ,second owner no help from the dealer any help would be very much aperciated

 

[waterfowler76]

welcome!! did a little searching and found this...

P1174 indicates fuel trim cylinder balance malfunction. This means that your cylinder-to-cylinder air to fuel ratio is not balanced properly. Usually caused by a faulty heated oxygen sensor located on the exhaust or a simple vacuum leak. It will not harm your vehicle but it will lower your fuel mileage and the engine light will remain on until the issue is fixed, which will fail an emissions test for some states. This may be repaired free under your emissions warranty. Check with your dealer.

 

[Rip]

thanks will start with the vacum leaks ..is there any way to test the o2 sensers?

 

[waterfowler76]

try here click

 

[Rip]

hey just want to say THANKS no cure today will try again tomorrow

 

[TinIndian]

o2 Sensor, I agree with waterfowler76

 

[Rip]

well going to take the plunge and replace the down stream o2 its cheaper and hope for the best if not i will replace the up stream also lol

 

[Rip]

g6 pain in the asz ..got inbalance issue cleared but now getting p0304 #4 cyl misfire and p0300 random cyl misfire replaced #4 coil and plug but still popping codes any ideas this is getting expensive