Need help with a 89 7m-gte

flnbobpogoman · 04-10-2006, 12:59 AM

i just gone to my last schoo and we plugged a snap-on scanner on it (for the check engine light)....theres 2 code error...... the Knock Sensor and another (53 i think) turbo and air flow problem....

flnbobpogoman · 04-10-2006, 01:42 AM

ill've just read some post...i heard about shimmed wastegate... i think mine is because both bolt have 4 shim behind each... maybe thats making me having that 15 psi??? ill tryed to remove 2 of the shim but the bolt is torqued but the wastegate still can move so i shimmed to the other side ( 2 shim to make the wastegate more far from the turbo) ive tryed it and the turbo dont seem to go more then 10 psi...but i cant really test it cuz the clutch is slipping

but adding or removing shims is a way to control the boost?
the car also have a 3? straight pipe (no cat) exhaust and a knN air filter...it also have arp torqued bolts.plz help me i wanna limit the turbo to 10 psi what should i do???

i also have the burned bulb dash light,antilock and check eingine light on

1988gte · 04-10-2006, 03:00 AM

I only have 4 washers and i hit maybe 10lbs of boost, I would just remove a washer or two. Get a boost controller to be safe and a good guage

suprra_girl · 04-10-2006, 11:32 AM

remove all washers from wastegate
buy a boost controller & a good gauge

don't adjust boost controller till you know what your car does stock

if you hit fuel cut once you start adjusting the boost, turn down the boost

04-10-2006, 12:59 AM	#1
flnbobpogoman Stock Join Date: Apr 2006 Location: Montreal Posts: 8	i just gone to my last schoo and we plugged a snap-on scanner on it (for the check engine light)....theres 2 code error...... the Knock Sensor and another (53 i think) turbo and air flow problem.... __________________ John

04-10-2006, 01:42 AM	#2
flnbobpogoman Stock Join Date: Apr 2006 Location: Montreal Posts: 8	ill've just read some post...i heard about shimmed wastegate... i think mine is because both bolt have 4 shim behind each... maybe thats making me having that 15 psi??? ill tryed to remove 2 of the shim but the bolt is torqued but the wastegate still can move so i shimmed to the other side ( 2 shim to make the wastegate more far from the turbo) ive tryed it and the turbo dont seem to go more then 10 psi...but i cant really test it cuz the clutch is slipping but adding or removing shims is a way to control the boost? the car also have a 3? straight pipe (no cat) exhaust and a knN air filter...it also have arp torqued bolts.plz help me i wanna limit the turbo to 10 psi what should i do??? i also have the burned bulb dash light,antilock and check eingine light on __________________ John

04-10-2006, 11:32 AM	#4
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	remove all washers from wastegate buy a boost controller & a good gauge don't adjust boost controller till you know what your car does stock if you hit fuel cut once you start adjusting the boost, turn down the boost __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

04-10-2006, 03:00 AM	#3
1988gte 3" Exhaust Join Date: Jul 2005 Location: Lubbock Texas Posts: 140	I only have 4 washers and i hit maybe 10lbs of boost, I would just remove a washer or two. Get a boost controller to be safe and a good guage