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Correct me if I'm wrong, but in diagnostic mode the ECU should be triggering the igniters based purely off the CPS signal plus an offset, correct? I'm beginning to suspect my CPS circuit may have some bad connections or something. I may try measuring the resistance in the wires between the CPS...

Well, I pulled the cap off my CPS and checked it's alignment. I set cylinder 1 to TDC (verified by pulling out the spark plug and resting a socket extension against the piston, and ensuring the cam gear marks were at the top). The CPS seems to be correctly aligned according to this 'how to'...

Yeah, I've generally given the turbo a quick check every time I've taken the intake off. It seems to spin fine. No ball bearing, but giving it a firm twist will spin it for several revolutions. I think I'm gonna try resetting the CPS tomorrow and see if that does anything.

This block tester fluid was supposed to turn bright yellow. The code 24 fixed itself. I disconnected the AFM, cleaned out the connector and proceeded to check the circuits for shorts or opens with a multimeter. I found no problems, hooked it back up and rechecked the codes. It was fixed. I'm...

So in the past few weeks I've checked the timing and did a block check. I also rechecked the engine codes and found a code 24. I've fixed it now with no appreciable difference in performance. The block check came up negative for exhaust gases in the coolant. After about 3 minutes (the test...

I suppose I should mention I don't intend to run the car permanently without the PCV pipe, I just removed it because when I pressurized the intake system it was functioning as a boost leak to the point where it was a clearly audible hissing. Since I wanted to be sure there wasn't any other...

Yeah, the wastegate isn't leaking and it opens at the correct reference pressure. Yes. No error codes. Compression tests have been good. I haven't done an official block test, but could a BHG really affect the boost so dramatically while not really displaying any other detrimental effects...

Hello Supramania, About I year ago I posted this thread in an attempt to get advice solving a problem I'd been having with an aftermarket T4 PT6262 turbo I had just installed. A year later I find myself still in the same situation. I've come back after trying several more tests/fixes in a...

Dirgle: I've been running with a Walbro pump dropped in place of the stock one for a while now (since before I threw my hat into the T4 Turbo upgrade ring). The only thing that's changed with my fuel system since I was running ~ 7-8 psi boost on my damaged CT26 (impeller blades were chewed up...

So, I just came back from a very loud trip down the street but to no avail. I didn't notice any improvements in the boost; I don't think it's anything in the exhaust.

Dirgle: 1. I used a pressure test to look for leaks. Since the car seemed fine up until positive boost I figured a smoke test may not tell me the whole story. I made a cap that clamped onto my compressor intake with an air fitting attached, then I popped off the piping leading to the throttle...

NewAgeMA70: I'm located near Victoria, BC in Canada. supraguy@aol: How I tested the back pressure was to unscrew my wideband O2 sensor from my downpipe and screw in an air hose (turns out the AEM UEGO uses the same 18mm thread as a spark plug) with a low-range pressure gauge (reads between 0...

Hello all, Though this is my first post here, I've been lurking around for a while using the information on these forums. A little about myself: I'm schooled in mechanical engineering and have been working in the aviation industry since I got out of school. I was never too interested in cars...