To make a long story short i was racing a new z06 vette (535flywheel h.p.heads cams)today .Beat em 3 out of 4 races!!!The first 3 i have to say honestly he lost due to his shifting although he was dam good at it .The last race he walked me and at about 100mph my truck started to shutter and just kinda shut down.Not the kind of shutdown where the dash lights come on if it stalled but to the point that i was giving it gas and it woudnt go anywhere at all.I coasted the truck till about 40 mph still trying to give it gas and finally around 40mph the truck started to come back slowly and very rough.black smoke blew out the sidepipes and the truck was breaking up.After about 2 minutes it was driving normal again.Man was i nervous,i thought i blew my motor again.I got on it a little bit after but nothing crazy and it seems alright.I am getting a slight breakup out of first gear mid throttle.I got a check engine light and the codes i pulled are P0135=malfunction oxygen sensor
P1131=manufacurer control fuel air metering malfunction
P1152=manufacurer control fuel air metering malfunction
The two bottom codes although different P codes same discription on scanner.Also before this all happen on tip in i thought i heard slight detenation so i had the chip ajusted.Im running high boost 8lb lower and 2.7 upper with all the bolt ons and built block.Any help as to whats happening here is apreciated in advance.

 

I would have a look at your plugs, sounds like you may have melted one or more.

 

Yes,thats what im thinking.I guess its hard to tell if its got a miss with the cams. but do you have an idea as to what the last two codes refer to.

 

Thats exactly what happened to me when my chip came loose. How it came loose, I've have no idea. It was duck taped tight. I removed the computer, recleaned the terminals, re taped the chip and the problem went away.

I only hope your fix is as easy

 

That would be nice.I never thought of that but when u think of it it makes sence.I just had the chip out 15 min before and the truck wouldnt run with the chip unplugged.I'll be checking that also.Thanx Gator.

 

Anyone on the P codes?

 

Sounds to me like MASS Air sensor related problem

it is the air meter

Doug

 

1131 - lack of o2 11 switch - lean
1152 - lack of 02 21 switch - rich
0135 - o2 sensor circuit malfunction 11

If you have headers maybe you melted something, or if your reading unmetered air flow?

Can u watch the cross counting of your 02 sensors with your scan tool? Fuel trims ?

 

Yes actually i did tonight and found one o2 sensor bad.Thanx again for all the help