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34 Posts
So, my car doesn't seem to have any power below 4000rpm. Pulling away from a stop the car is crazy slow. I can't even break the wheels free on snow or wet pavement. Once it gets up to 3500 - 4000 rpm however, the car pulls very hard all the way up to redline.
Possible Symptoms (Could be completely unrelated as well).
-No power below 3500 rpm (Cannot break the tires loose accelerating from a stop) - WAY slower from a stop that my 00 NA was.
-Slow to rev from a stop
-On some cold winter mornings the car has a very poor initial idle and it is VERY hard to get it to rev. Once it hits 2000 rpm it wakes up. - Related???
-Once power does come, it it pulls very strong and has no problem maintaing 17psi
-I was plugging and uplugging stuff to see if anything changed today and after I tried driving with the TPS uplugged I turned the car off and re-plugged it and got the tranny flashing arrow and the car could barely move in Drive - Felt like it was slipping and engine wouldn't rev past 2000 RPM. Reverse was fine and if I put it in Low it seemed fine as well.
-I have about 5psi showing at 2500rpm and can get 17psi at higher revs.
-Idle in Park shows 12psi vacuum (if it matters)
Attempts to fix it
-ETC sensor changed
-Front 02 changed
-MAF cleaned
-IPD HD TCV
-All new vacuum lines
-IPD R.I.P kit
-Cap/Rotor/Wires/Plugs
-REBUILT MY TURBO (It was pretty gummed up and had a lot of carbon buildup so I thought that surely this would fix it.)
-Tightened wastegate actuator
-Loosened wastegate actuator
-clamped actuator so wastegate couldn't open
-Stock and ST ecu have same issue
I am running out of ideas:
-Tranny slipping at lower RPM so ECU is killing power to stop slipping. Higher RPMs are fine so the ecu allows it.
-Crack in exhaust housing killing low speed exhaust flow (can't hear and leak and would I be able to make and hold 17psi if this was the issue?)
-Clogged CAT? (again. wouldn't this affect high RPM power even more???)
-Bad compression (Haven't had a chance to compression test it but it could explain the complete lack of power until the high boost comes in. (still seems weird though).
HELP. I AM LOSING MY MIND.
Possible Symptoms (Could be completely unrelated as well).
-No power below 3500 rpm (Cannot break the tires loose accelerating from a stop) - WAY slower from a stop that my 00 NA was.
-Slow to rev from a stop
-On some cold winter mornings the car has a very poor initial idle and it is VERY hard to get it to rev. Once it hits 2000 rpm it wakes up. - Related???
-Once power does come, it it pulls very strong and has no problem maintaing 17psi
-I was plugging and uplugging stuff to see if anything changed today and after I tried driving with the TPS uplugged I turned the car off and re-plugged it and got the tranny flashing arrow and the car could barely move in Drive - Felt like it was slipping and engine wouldn't rev past 2000 RPM. Reverse was fine and if I put it in Low it seemed fine as well.
-I have about 5psi showing at 2500rpm and can get 17psi at higher revs.
-Idle in Park shows 12psi vacuum (if it matters)
Attempts to fix it
-ETC sensor changed
-Front 02 changed
-MAF cleaned
-IPD HD TCV
-All new vacuum lines
-IPD R.I.P kit
-Cap/Rotor/Wires/Plugs
-REBUILT MY TURBO (It was pretty gummed up and had a lot of carbon buildup so I thought that surely this would fix it.)
-Tightened wastegate actuator
-Loosened wastegate actuator
-clamped actuator so wastegate couldn't open
-Stock and ST ecu have same issue
I am running out of ideas:
-Tranny slipping at lower RPM so ECU is killing power to stop slipping. Higher RPMs are fine so the ecu allows it.
-Crack in exhaust housing killing low speed exhaust flow (can't hear and leak and would I be able to make and hold 17psi if this was the issue?)
-Clogged CAT? (again. wouldn't this affect high RPM power even more???)
-Bad compression (Haven't had a chance to compression test it but it could explain the complete lack of power until the high boost comes in. (still seems weird though).
HELP. I AM LOSING MY MIND.