i use to have cel during full boost just under redline, the problem went away after messing around with my safc settings, i think i was running too rich, so i turned it down some, and it never shows its ugly face.

 

i would also check your plugs, maybe replacee them.

under part throttle there is less gas. under full there is more and possible the plugs can't light it all off any more.

 

i used to have the same problem, fuel injector cleaner helped alot along with a new 02 sensor.

 

o2 is another good idea.

when things like this happen "Was running perfect for 3 months then all of a sudden started running like crap". I would first start looking at what things might deteriorate quicker due to the excessive fuel and pressure increases..

stuff like plugs, o2, injectors.. all cheap easy things to rule out.

 

finally figured it out its a bad MSD (------- used ----) car runs fast as hell but i can't lunch my car i've had that problem since the day i got it very harsh so i put new mounts in but i still have a ---- load of shake what can i do to stiffen things up and get to launch like a normal car.

 

hey ur the guy that was running at kenndale last week rite? you still getting any codes?

 

huh, i've got kinda the same problem in 1st gear. It pops and messes up like that. The rest of the gears are fine.

After putting on my other o2 housing (with a DP on it) (which causes the flapper to be a tad open at idle), it doesn't seem to do it anymore

 

yeah that's me. the car broke the rear transmission mount bracket and the engine slammed the tps agains the fire wall and broke it. all the other codes taking care of i just have to find a new tps now. i'll see you on thursday if your going to be there.

 

oic...yeah imma be there...if u cant find a tps ill have one on me at kennadale. later

 

thats cool bring it