Clarke240
06-06-2012, 10:38 AM
S13
CA18DET
GT28RS (13psi wastegate), 370cc, 255 pump, Z32 fuel filter
Okay, so my car has no power. (insert CA18 joke here) Im talking 30 seconds to 60mph no power. Cant get to redline in pretty much any gear kind of loss in power.
There is not a miss, though it feels like it is stumbling on its face when above 3k rpm, but it does keep rising, albeit slowly, so the MAF is at least somewhat functional. By disconnecting one coil at a time, there is a change in idle every time, so each cylinder is firing.
Plugs are gapped at .034 and are only 2 days old.
Im running rich (11.2-11.8) at idle, though it was also like this when it was running well.
Wasnt idling for shit, so I adjusted the TB screw and reset my TPS afterwards to .47v at idle which is within spec (improved very slightly).
Timing is at 9btdc. 10btdc is what is in the FSM, so that wouldnt be causing it.
Compression was good a couple weeks ago when tested, within 7psi between all cylinders.
I have one large ground going to the engine, I ran 2 other small grounds, one from the intake manifold, and another for the coils.
The MAF wiring is haggard AF. Its cut up, and spliced together. But... it worked fine up until late when my MAF stopped working. I ran an external ground to the core support off of the existing ground and it worked again.
My problem didnt start until a couple weeks ago. Trying to solve the issue of it running rich, I went and had a boost leak test done. The flange for the BOV was leaking. Fixed it. Still running rich, went back and had a smoke test done on the vacuum system performed. The IACV was leaking bad. Mind you, the car was still running well with good power. I brought it home, pulled the IACV, resealed it with copper sealant, and reinstalled it. Went to start it the next morning, and the MAF didnt work, though I hadnt touched it the night before. Didnt idle, didnt rev above 2k, nothing. Ran the new ground, and it worked fine again. Driving a couple days later, there was smoke coming from my exhaust. Found out the seals on my turbo had given way, and oil was leaking out of the compressor side intake.
I took it as a sign I needed to upgrade, got a Disco Potato and equal length mani, and 2 weeks later, when everything came in, installed them. Thats where I am now. I have no power, the car wont rev correctly (as mentioned above, feels like I have no power to rev through the range) and stumbles when accelerating. And I am not building more than 5psi of boost, though I have a 13psi actuator.
I have tried trouble shooting, but have not figured it out. I really want to be able to bring my car to Hyperfest, so I need some advice!
I have tried to be as detailed as possible, but if any other info is needed, ask away.
Thanks for the suggestions beforehand.
CA18DET
GT28RS (13psi wastegate), 370cc, 255 pump, Z32 fuel filter
Okay, so my car has no power. (insert CA18 joke here) Im talking 30 seconds to 60mph no power. Cant get to redline in pretty much any gear kind of loss in power.
There is not a miss, though it feels like it is stumbling on its face when above 3k rpm, but it does keep rising, albeit slowly, so the MAF is at least somewhat functional. By disconnecting one coil at a time, there is a change in idle every time, so each cylinder is firing.
Plugs are gapped at .034 and are only 2 days old.
Im running rich (11.2-11.8) at idle, though it was also like this when it was running well.
Wasnt idling for shit, so I adjusted the TB screw and reset my TPS afterwards to .47v at idle which is within spec (improved very slightly).
Timing is at 9btdc. 10btdc is what is in the FSM, so that wouldnt be causing it.
Compression was good a couple weeks ago when tested, within 7psi between all cylinders.
I have one large ground going to the engine, I ran 2 other small grounds, one from the intake manifold, and another for the coils.
The MAF wiring is haggard AF. Its cut up, and spliced together. But... it worked fine up until late when my MAF stopped working. I ran an external ground to the core support off of the existing ground and it worked again.
My problem didnt start until a couple weeks ago. Trying to solve the issue of it running rich, I went and had a boost leak test done. The flange for the BOV was leaking. Fixed it. Still running rich, went back and had a smoke test done on the vacuum system performed. The IACV was leaking bad. Mind you, the car was still running well with good power. I brought it home, pulled the IACV, resealed it with copper sealant, and reinstalled it. Went to start it the next morning, and the MAF didnt work, though I hadnt touched it the night before. Didnt idle, didnt rev above 2k, nothing. Ran the new ground, and it worked fine again. Driving a couple days later, there was smoke coming from my exhaust. Found out the seals on my turbo had given way, and oil was leaking out of the compressor side intake.
I took it as a sign I needed to upgrade, got a Disco Potato and equal length mani, and 2 weeks later, when everything came in, installed them. Thats where I am now. I have no power, the car wont rev correctly (as mentioned above, feels like I have no power to rev through the range) and stumbles when accelerating. And I am not building more than 5psi of boost, though I have a 13psi actuator.
I have tried trouble shooting, but have not figured it out. I really want to be able to bring my car to Hyperfest, so I need some advice!
I have tried to be as detailed as possible, but if any other info is needed, ask away.
Thanks for the suggestions beforehand.