shaodome

iTrader: (3)

So just goofing off and showing a friend the car, I made a right turn out of a parking lot and got on it a litte...to just wiggle the hips, ya know?

the car IMMEDIATELY started bucking...press in the clutch and it idles and revs out just fine, but any load on the engine and it bucks...

I have NO idea what the hell is going on. The car has a least a 1/4 tank of gas and I know the gauge works as it'll read below where its currently sitting.

There is no fuel pump ECU in the equation as it is bypassed.

The car is a 1992 SC300 w/ an Aristo Swap, Aristo ECU...etc...

TLDriver

iTrader: (4)

Stuck on 18psi due to a previous owner ghetto rig TTC


with that said I would start looking at all the wiring.

1siksc

iTrader: (8)

do you still have variable power steering? That tends to cause alot of throttle issues

shaodome

iTrader: (3)

I have no idea....any way to check?

edit: as for the TTC...

I said ghetto because the exhaust bypass valve is welded open instead of tied open or done the electronic way via the VSVs. That coupled with the Aristo (JDM) turbos and a free flowing exhaust = boost creep. All of that stuff is going away as soon as my Precision Billet 6265 gets here (been two weeks now).

shaodome

iTrader: (3)

So I looked up the powersteering bypass and I don't see how that would cause such severe bucking. The car is MAP based, not MAF (Aristo ECU).

shaodome

iTrader: (3)

Went out and drove the car tonight after it sat for a few days and problem is gone again....figures...

The worst kind of problem is the one that disappears randomly