WTF?!?! Ran Awesome This Morning, Now Messed Up!

[rico05]

Got up, warmed her up, went to work. Didn't boost hard or anything. Just a normal drive to work. Come out to my car 10 hours later, and it start like normal, but something is wrong. Sounds like it is running on 2 cylinders. I let it sit, and it seems to go away. Idles fine, revvs ok, pull normal vacuum. But shakes and sounds like a$$. I can drive it (drove it home) and boosts fine. Get home, sounds like crap still, but a little better than initial start up. Any thoughts? I assume to check normal stuff like coils and injectors (although it smelled HELLA RICH when I was poking around the hood just now when I got home, so I think injectors are fine)

[nocwage]

How is your O2 sensor? Have you replaced it? If you did did you use the right one?

[pulsar gtr]

Sounds like you got an intermittent bad coil, hence when it miss fires it runs rich due to unburnt gas, an ignitor is another possibility.

Good luck,

PULSAR GTR

[rico05]

New O2 sensor last week. Bosch OEM one from NAPA. Cost me a damn $65

Looks like it is time to bust out the FSM yet again. Aaahhh the joys of it all. Well, it ran perfect for a week :(:(

[rico05]

Guess it was a gremiln. Started and seems to run fine. Which could be the problem? Ignitor or coils? I think I am going to buy both this Friday (payday ) and just hang onto the little buggers for just in case...

Scratch that. Started to revert a bit, then it went away. Then it came back. then it went away. O'Reilley wants $45 a peice for the coils! Looks like I will need a few:(