Hello guys, My 2010 LNF has a ZZP Intake, Catted Downpipe, Tune, and Stage 1 MAP Sensors.
I just put the MAP Sensors and tune in last night (ZZP Tune), It threw a code for the MAP sensors and I made sure they were plugged in and everything but they still threw the code. Still not sure what was wrong with them.
Today I was coming through second gear, Shifted to third, (Off Throttle, not NLS) and heard a huge backfire and the car died right away. Rolled it to my buddies house with momentum and checked everything. Started the car up again and it runs like absolute garbage (Literally sounds like its running on 2 cylinders) and then dies after 10 seconds or so. I checked for vaccuum leaks, Boost connections and Spark plugs and timing chain, Still not sure what broke on it and that's why I'm asking for help.

My guess is, Due to the MAP Sensors, the car either overboosted, or lean popped. I guess it could possibly have broke rockers but I'll have to pull it all apart to find out. Looking for any advice or ideas.

also should add that I changed the oil, It looked normal and was not glittery or anything to suggest catastrophic failure.

 

Did you take a log when you were doing a pull? ZZP tunes turn off some CELs as well iirc so a CEL might not show for overboosting. Regardless a log would show you what afr you were running along with many other parameters that are apart of ZZPs channels.

 

I hate to be that guy, but if your car has issues you shouldn't be driving it hard.

I would suggest a compression test and leak down test. Given you checked the timing chain did you inspect the valve train to see if a rocker arm fell?

 

I checked rockers and it seems like they’re all in ok condition. I’m betting it possibly blew the rings out of it. Should’ve known better.
will do a compression test this evening but I don’t have much hope lol

 

Ok so,
Did a compression test, 150PSI +/- 2-3psi in every cylinder.
The car is surging from 500-1000RPM on idle and seems to act like its got a vacuum leak but I cant find one anywhere
I put the stock MAP Sensors back on, and that got rid of my code, but the car still wont idle.
All spark plugs are also new and sparking as they should be.
When its trying to idle, It stinks like fuel.
Tomorrow I will try unplugging the MAF to see if it changes anything. Otherwise I will likely take it to get looked at.

 

Found The Problem.
Unplugged the MAF this morning, Car ran just fine at idle, Limped it home, staying out of boost and below 2500 rpm, AFRs on rpd were all over the place.
Got it home, Took the metal portion of intake off, and attempted to kill the car by putting my hand over the intake. Idle didnt even move at all. Checked all the charge pipes again, no sign of splitting or cracking or anything.

Pulled the bumper off, Entire passenger side of intercooler end tank was blown to smithereens.
Ordered up a new intercooler kit, and hopefully she will be good as new.

 

 

that's darn impressive!!