Still doing it

[SHOleen]

I put a post a while ago about bad idle i replaced the Iab and it fixed it but now it does it less frequently but it still does it(at idle the motor shakes violently makes car shake to) i checked the codes the only two i got was egr not opening and hego on bank 2 could one of those do it. And just as a side note it seems to have less power from 1 to 3 than 3 to 4 if you know what i am talking about.

 

[Arjun]

My car hasn't ever felt particularly powerful from 1000 to 2500 rpm-- above there it kind of rockets off. It's always been that way.

Anyhow, with your problem, how does the cylinder balance test check out? That would let you know if you're having any problems with any cylinders in particular, and might help to track down the problem.

 

[RStalveyARFF]

you'll want to replace your rear O2 sensor, and pull your EGR valve to clean it. It's choked up with carbon, and is probably stuck. Otherwise it's faulty, or a connection is loose. Good luck!

 

[projectSHO89]

Arjun

Sounds like your secondaries are stuck open. Check them.

Steve