Need this running asap take 2

[Mean Green]

Guessing you have tried this but what happens if you unplug the electrical connector from the MAF and then drive it ?

Runs much worse.

[CoreyB]

Thats weird. My VR4 will run decent without the MAF, just rich. Do you have any readings from the rear O2 ?

[Mean Green]

Thats weird. My VR4 will run decent without the MAF, just rich. Do you have any readings from the rear O2 ?

Yea, the O2's read. I will go out and drive it with the MAF unhooked again and see what the datalogger says. brb.

[Mean Green]

wow...it drove like total shit. If I touched the gas, it would die. I'll try to post the log now with the MAF unhooked.

[CoreyB]

Sounds like its not going into closed loop. I am not much help when it comes to log files as I dont know what things should read. I am more of a mechanical/electrical guy than a settings guy, if that makes sense. I hope someone will chime in on the log file for you.

[Mean Green]

Sounds like its not going into closed loop. I am not much help when it comes to log files as I dont know what things should read. I am more of a mechanical/electrical guy than a settings guy, if that makes sense. I hope someone will chime in on the log file for you.

What do you think would cause the car to not go into closed loop?

[Mean Green]

I managed to upload the logs but I had to use the "other" site to host them but that's the best I can do.

http://www.3si.org/forum/f1/see-anyt...6/#post6052196

This log is with the MAF unhooked. Any erratic behavior coming from the TPS is me trying to keep the car alive.

[Mean Green]

I've replaced the FPR one time already but the guy I got it from was unsure what it was from. I did notice a slight difference but that was with the messed up head. Would the FPR cause all the issues I'm having right now? I guess if I understood the logs more I would be able to tell.

[Mean Green]

Well.........if one exhaust manifold is glowing..... the other isn't........there's a problem with the cams.


Or the valves.

Steve

I went ahead and ordered a new FPR anyway, I'll have it this afternoon and will be able to post results tonight. If that does not help at all, then the rear head will come off as I do not know what else I can do.

The manifolds don't glow at all actually, it's only the rear turbo. Also, if the cams are lined up perfectly, and the compression test and leak down test pass with flying colors, what other things can I do to test the valves?

[KeithMac]

Only thing you can do is strip the heads down and maually push the valves in and out (no springs in at this point).

Massive timing retard will cause the manifolds to glow but it would do both not just one..