Blackmount
03-22-2013, 03:06 PM
So I thought I'd make a thread maybe someone will find something I am not seeing.
Bought the vr4, it would cut in and out pretty bad. about about 30 boost leaks, so I did full vac reduction, and fixed all the boost leaks I could including replacing the rear turbo O ring seal thing.
Also did new plugs. Gapped em at .028
also found one of my coils on my coilpack had exploded, so I swapped that coil with another.
Car ran great for short amount of time, but once I really started driving it... it started cutting and breaking up in higher RPMS (usually around 4K)
I did a log and saw my TPS was going to Zero every now and then during WOT pulls. So I unplugged it and it would do WOT pulls fine. Figured it was the TPS.
Replaced TPS.
Fixed it. Car ran fine...well after a few days the whole problem started back up again. but this time slightly different...
1: its not as severe... most of the time it will do it lightly but I can stay in it... RPMs will keep on climbing.
2: everynow and then its bad enough to to make me let off.
3: seems the worst in 1st and 2nd. 3rd is usually when it does it lightly, sometimes 2nd.
4: happens at about 4000 rpms and up.
5: If I unplug the TPS, pulls better, but still breaks up some unlike before Also started getting knock
6: this does not seem boost dependent. It happens just as much on Waste gate, 10 PSI, 13 PSI, and 15 PSI. Knocks about the same amount on all boost levels, maybe a little more when I had it on 15 PSI
I've looked around for boost leaks and things but have found nothing so far. normal driving the car is fine, gets good MPG and everything.
I've tried swapping MAF's
NO CEL's
Things I am going to try
Re gap plugs
check Ignition timing
Boost leak test
Try and hunt down someone with a Turbo ECU I can swap out to see if it will make it run any better.
I've posted logs. If you see anything out of the norm please say so.
:Edit: I cannot get logs to upload as attachments I will try to figure something out, I can email them to you by request.
Bought the vr4, it would cut in and out pretty bad. about about 30 boost leaks, so I did full vac reduction, and fixed all the boost leaks I could including replacing the rear turbo O ring seal thing.
Also did new plugs. Gapped em at .028
also found one of my coils on my coilpack had exploded, so I swapped that coil with another.
Car ran great for short amount of time, but once I really started driving it... it started cutting and breaking up in higher RPMS (usually around 4K)
I did a log and saw my TPS was going to Zero every now and then during WOT pulls. So I unplugged it and it would do WOT pulls fine. Figured it was the TPS.
Replaced TPS.
Fixed it. Car ran fine...well after a few days the whole problem started back up again. but this time slightly different...
1: its not as severe... most of the time it will do it lightly but I can stay in it... RPMs will keep on climbing.
2: everynow and then its bad enough to to make me let off.
3: seems the worst in 1st and 2nd. 3rd is usually when it does it lightly, sometimes 2nd.
4: happens at about 4000 rpms and up.
5: If I unplug the TPS, pulls better, but still breaks up some unlike before Also started getting knock
6: this does not seem boost dependent. It happens just as much on Waste gate, 10 PSI, 13 PSI, and 15 PSI. Knocks about the same amount on all boost levels, maybe a little more when I had it on 15 PSI
I've looked around for boost leaks and things but have found nothing so far. normal driving the car is fine, gets good MPG and everything.
I've tried swapping MAF's
NO CEL's
Things I am going to try
Re gap plugs
check Ignition timing
Boost leak test
Try and hunt down someone with a Turbo ECU I can swap out to see if it will make it run any better.
I've posted logs. If you see anything out of the norm please say so.
:Edit: I cannot get logs to upload as attachments I will try to figure something out, I can email them to you by request.