Hey guys, having a problem with my car after transmission replacement. I broke the input shaft at the track, engine hit the rev limiter when it broke. The trans shop removed the front o2 sensors during repair. The rear o2's are deleted the are some sort of

Now the car runs very poorly at cruise-light throttle after it warms up it gets worse. The air fuel ratio swings from very lean to very rich. Car runs great at wot. The only dtc it was showing said Maf performance error (immature) (pending)

They also tipped the engine back to remove the trans, I'm kinda wondering if maybe they could have cracked something on the back of the intake.

Anybody have a similar problem before?

 

Put your front o2's back in.

 

They were reinstalled after the trans repair. I didn't word that very well.

 

check your vacuum lines at the rear of the engine

 

You can also disconnect the maf sensor and see if drivability improves.

 

I was thinking that too. I'll have to get a friend to check back there, I can't get back there myself. (I'm disabled)

It runs worse with the MAF disabled. Time for a carb

thanks for the help guys, I appreciate it.

 

Looks like a vacuum cap got ripped during the trans replacement. Pulled the intake today and found it, car runs great again. Thanks again for the help guys.