I'm a new member and wonder if any other H3 owners have experienced this PO 302 code. I've changed the #2 coil and all the plugs.
I've also got these codes PO 455 and PO 442. Is there a way to check the fuel injector without removing the intake manifold? Not looking forward to that job because of the access behindtbehind inner liner wheel well. Any suggestions would be appreciated

 

Welcome to HF.

Year, I5 or V8 and Miles? When you changed plugs, make sure you used ACDelco OEM plugs, I5s do not like aftermarket spark plugs. You should do a compression test on #2. Or do the old swap coil pack # whichever you want with #2 and make sure the code is still a P0302 or see if the knock follows where ever you put the current #2 coil pack.

For the P0455/442 easy stuff first. Clean the gas cap gasket and remove any corrosion from the filler tub surface so when the cap is on it has a popper seal. If that does not help, search more here under EVAP Vent Valve and then Purge Valve. Let us know if you need more help.

 

2006 I5 going to get another check after swapping the new one to #1

 

Do you have a fuel odor after parked?

 

No odor that I'm aware of. Sweetheart could and same cylinder misfire

 

Swapped the coil no change

 

P0302: PIP5029H


P0442/455 (no fuel odor):