limp mode, smoking on decel....

[Blake260]

welp some new problems since H20....

My car is overboosting (~23psi on APR), and will go into limp mode if I am at low RPM's and high boost. so I can still pull through 1st and 2nd, but 3rd is too high a load and it goes limp.

also, i am getting some white smoke, only on Decel, and only after pulling through gears. it did this before the limp issue, but it is definitely now worse.

I pulled codes, and the only one that concerned me, besides a positive charge deviation code (limp mode) was an EGT code, drivers side.

So normally I would just order a new one and throw it in. but the code has changed over the past couple days.

it started as a "short to ground" code, then a "implausible signal" code, now I cant get it to come back. should I go ahead and order it?

I have a DYNO day this sunday, so any and all help is appreciated.


also, my mods are:

APR chip
Dahlback DP's with custom testpipes
ASP cat-back
deleted N249
deleted secondary o2's
deleted EVAP
710N's (brand new yesterday)
SAMCO TBB

TIA!

[Aureus1]

Just do a VR6 swap, I'll help you on Saturday...

[RolledMySTi]

Have you pressure tested?

[Blake260]

yea pressure test was good, no leaks, did it twice.

I ordered the EGT anyway, and got it today, ill see if that works.

[Blake260]

EGT senser stopped a significant amount of smoke on decel. but didnt do anything for the limp issue.

BUT, I pressure tested it again, and my passenger side wastegate line has a leak :( anyone have any suggestions one which hose I should use and tricks to make it easier? I know it can be done with the motor in.