#2 Cylinder Misfire???

[super white alero1]

Test for spark at the coil pak located near the FW. If spark good check Fuel pressure (Port fitting near the belt), if pressure @ 52-59 psi) then check compression on #2 cylinder (1st piston near near belt by radiator) min 100psi.
if good check injector for pulse using led diode.

If all else fails check for coolant in cylinder. If coolant found check for LIM leak. If LIm is good be prepared for 4 digit bill.

any other codes first besides P0302?

Maybe P0420???

[keri_anne78]

Originally Posted by super white alero1

Test for spark at the coil pak located near the FW. If spark good check Fuel pressure (Port fitting near the belt), if pressure @ 52-59 psi) then check compression on #2 cylinder (1st piston near near belt by radiator) min 100psi.
if good check injector for pulse using led diode.

If all else fails check for coolant in cylinder. If coolant found check for LIM leak. If LIm is good be prepared for 4 digit bill.

any other codes first besides P0302?

Maybe P0420???

I've only got those two codes.

[super white alero1]

Originally Posted by keri_anne78

I've only got those two codes.

What 2 codes the ones I pulled from my butt? you mean an P0420 - Catalyst below threshold and P0302-#2 misfire?

You can't have a P0420 and a localized misfire.
Please have AZ provide a scan with codes. Look specifiy for something that say "ignition circuit" or "lean condition" or "out of range"

[keri_anne78]

Those are the two codes that the mechanic gave me. I didn't realize you were just guessing! I just thought, wow this kid knows what he is talking about! The slip specifically says Code P0420 catalytic Convertor not working properly and code P0302 Cylinder #2 misfire.