Hey guys, need some good advice here. About 4 months ago I picked up my car from EVO with a engine build, and EVO soft ware. The car has been running 100% boosting strong (1.6 bar).
Few weeks ago I took it to the local dealer for an oil change. Picked it up the next day, and the car had absolutely no boost. It felt like valet mode, but the new software does not have that anymore.
The dealer checked everything out, indicated everything mechanical was good, and blamed it on the software. Talked to EVO, and they thought the dealer was tryig to read the file in the ECU and messed it up. Long story short, sent the ECU out, and none of the above, ECU was good, and no one tampered with it.
Now the dealer checked again, and says it is the wastegate that has seized up, and caused the car to over boost, and possibly ECU shut down. Mike at EVO indicated there was nothing wrong with the ECU.

Q1 has this happened to anyone? if so, what is the prob?

Q2 car was running perfect before I took it in, could the wastegate seize up over night?

Q3 What do you think is the problem? IMO, dealer doesn't know what they are doing!

Any help would be appreciated, getting very P.O.

Thanks,

Howie

 

are you suppose to be running 1.6 bars ? did you ask EVO ? are you running 1.6 with pump gas? is you cargoing into limp mode from over boosting?

 

Damn, that is a lot of boost!!!! Was is on pump gas?

 

Stupid question but....you made sure that you aren't losing boost via leakage right? Maybe when the mechanic was poking around he popped off an air duct from an intercooler or something.

 

1.6?! you are in permanent ob.

 

He has internals and is running 1.6 bar on gt28's not gt30's.

1.6 on gt28's is very different from 1.6 bar on gt30's

From what i heard, PIWIS should be able to reset this if a standard obdii reader can't.

 

arent the K16/gt28's way out of their efficiency range at 1.6 bar?

good luck

 

Hey Marty, I hope you are well, it's been awhile.

It was my understanding that most gt28/k16 turbos run 1.5...

 

No boost as in zero? If that's the case, you have a leak. A big one. It's not possible to have zero boost unless you seized both turbos which isn't likely and you/dealer says engine checks out fine.

I bet some A hole at the dealer took it for a spin and popped a hose or something?

 

Ari,

This was what I thought in the first place, but everything checked out, no leaks.
Evo says with built internals, 1.6 in normal on pump gas. I've been running this for over 4 months, and all was well before the car went to the dealer.
If it was over boosting, shouldn't Evo been able to tell when they checked the ECU?
Seems like the turbos aren't kicking in at all.

Anyone else have any ideas?

Howie

 

You are effing kidding me: 1.6 bars on pump? That is idiotic.

The reason many of us think that internals are a must is because
of early tuners cranking up the boost on crap gas. Run good gas with high boost,
period!

MK

 

vac lines or wiring harness from factory boost solenoid [or whatever you have in place of it ie greddy, etc]?

 

First and foremost learn how DYI oil change on these modded cars.
Check the all the hoses for tight fitting. The only way that you could get 0 boost is when one of the hoses completely come off. Good luck.

 

Thanks for the advice. I'll keep an update as to what is happening when I find out more.

Howie

 

Woody. Be nice. The GT700's have been running 1.5 bar on pump since day 1. These are tiny GT28's, not the Uber Mollusks you Proto guys are running. Your reference to "early tuners" is not applicable as Howie has the latest EVOMSit on his built engine. My wideband show 10.0 - 10.5 @ WOT. Don't like hearing that boost envy coming from you Woodie!