SSix66

Hey guys. Question.
How come everyone gets to supercharge their 2.4 SS and everything is good except mine? Got to idle smooth, then tried for a run and sounded like it was misfiring. HPTuners and I can't figure out why "Engine Power Reduced" keeps flashing, and "Service Traction." The balt is really pissed off and sending codes for the throttle body. No vacuum leaks. Bought this off of ZZP, just doing what the instructions called for.
My setup is:

60 lb/hr Siemens Injectors
.032 Iridium Spark Plugs
3.1 Pulley
3" CAI
2 Bar MAP
Factory MAF
M62 SC + Manifold
LSJ Throttle Body

Please Help! And yes a professional was on the computer, I'm learning. Thanks in advance..

ItalianJoe1

iTrader: (10)

Brand new TB? Sounds like it's giving you issues. Try swapping it out and see if the codes persist. It's usually a throttle body when you have eng power reduced mode, the traction system is also disabled if there's a TB fault.

chevygirl2006

Engine power reduced is caused by the maf sensor a lot of the times. That's what caused mine.

SSix66

Swap the TB for another LSJ TB? And what replace the MAF?

It idled smooth, then went into limp mode.
Codes P1516 and P2101

SSix66

I fixed the rough idling. Limp mode isn't present anymore. Neither was Service Traction.
All that was left was a check engine light and the inability to Wide Open Throttle. It seems like it's drowning in fuel or misfiring/stumbling around 4000 at WoT. Anywhere at WoT ..
The CEL gave off P1400 - P1101 ..

and P0300 was there before the tune, it only returned because I feel like I moved the throttle body wires while I was looking around. I moved the wires back in it's place and the idle returned smooth again.
The brakes feel hard when it starts idling rough .. and when it idles rough again, the Engine Power Reduced and Service Traction comes back ..
When idle is smooth, it idles high around 2000 in Neutral .. not in gear.

What if it's kinda like old earphones, when one works only when you wiggle the wire in a certain position ...

Now I noticed the radiator fan doesn't kick in. 244F! It used to kick on around 210F .. AC doesn't work either, should I review my tune? (ZZP w/ HPTuners)

It's summer time .. and I need help :\

07 LE5 2.4 Auto SS
3.1' Pulley
60lb/hr EV6 Siemens Fuel Injectors
M62 Eaton SC
LSJ Intake and TB
3' Air Intake Tube and K&N Filter
2 Bar Map
Factory MAF
.032' Iridium Autolite Spark Plugs
S3 Heat Exchanger w/ Bosch Pump

Crav3

iTrader: (1)

Service traction and abs will come out when in Limp mode. The problem sounds like it could be the throttle body. Try swapping it out like italian joe said.

My brother has a 2.2 supercharged cobalt and was having the same problem. Swapped the throttle and it stopped happening. Might be that. Also check the throttle body wiring as that could cause this too.

I seen newer silverados with dod where they get limp mode and traction comes on, with the transmission Switching gears hard like a shift kit and turns out to be the lifters got stuck and grind up the cam causing misfires and rough idle. Might not be as bad on your car but doesnt hurt to take the valve cover and make sure its not a bigger problem.
Had a friend that had his ss supercharged misfire and on limp mode all the time. Turns out a rocker arm had broke and was causing it