Ok. I previously had a problem with my MAX bucking,found that it was the 02 sensors. Now I have replaced them and I still get a slight buck in the morning. I don't have a CEL. I have tried the fuel cleaner. checked my coils, and my plugs look fine. What else could it be that isn't throwing a code.

 

BUMP

 

clean the TB?

 

Couple days ago, that same bucking thing started up in themorning with my Max. SES light came on and it turned out to be the MAF. I would tell you to check the MAF but I don't know if there's a way to check if its malfunctioning. (Correct me if I'm wrong)

 

Oh! I forgot to mention that I also cleaned the throttle body and installed a new ECTS

 

Ok! I just got back to work and I pulled in to my parking space and my car just dies. It started right back up though.

 

Are coil packs plugged in all the way?

SuDZ

 

WELCOME TO BAD COIL PACK HELL!!!
pop'n -- about 15

my $0.02...if I had more sense (and cents) I'd buy all new coil packs!

take care,
FLO_BOY

 

I did a test on all of my coil packs . The one where you unplug them one at a time. And they all tested ok. I just played with my idle, it was kinda high. I don't know if that was it though.

 

I did this test too.

But, the problem is usually intermittent, so, if the coils are working
at that moment, they'll all test OK...I know that they all tested OK
when I was working on 'em, but I still have issues (with the car that
is!)

FLO_BOY

 

Ok! How much did all 4 cost you? I won't be able to replace mine to next year most likely

 

actually, there's 6 of them...
if you look around, some dealers will sell for $60US/each + shipping.

-FLO_BOY