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Update - I changed the DTC settings and fired the car back up. Runs...albeit completely different. This gives me great hope that you guys helped me sort out the issue, but yes, I know I need to...

Ugh...I knew it would be something small, yet important, that I overlooked. I'll make some changes and report back tonight. Thanks for the lead!!

I've been beating my head on a wall for a bit here. Need some assistance...

The setup: 5.3L, FAST 88lb injectors, MagnaFuel pump, stock rails/regulator, 76mm single turbo, ~10PSI wastegate,...

I will definitely try that and let you know. Right now it's set to zero (0).

Can you tell me what the OS number is for the Camaro/Firebird version you mentioned? Same one (12202088) just the...

The car is a 1999 Pontiac WS6 but I got it with an LQ4 swap in it. When I pulled the tune, it had the 09381344 OS in it. I put the 01250003 OS on it from a 2001 Corvette (12202088). I changed all...

Hey all,

I'm having an issue with my fuel gauge not working once I converted to a custom OS. I had a 1999 computer with OS 09381344 on it. Added a Procharger and switched to operating system...

I did a ton more logging and here's what I'm noticing. I logged injector pulse width and started comparing that against AFR. At a steady idle at about 14.6AFR it's commanding about 2.6ms injector...

I quick ran out to the garage to give the old throttle body a try. I tried two tunes. The first one with all the changes I've been making. The second was the one I pulled off the car immediately...

I've contemplated tossing it back on. I have the throttle body, but I don't have the coupler any longer. I guess I could just run some tape around the end to seal it up. I can try this.

Guys,

I'm having an issue with what appears to either be a fueling or spark issue when I blip the throttle and it tries to settle back in to idle. As it comes back down, spark ramps back in, the...

Correct me if I'm wrong, but I don't think this ECU has a throttle cracker...or at least not one that's labeled as such. In terms of the follower, would you increase the "decrement rate" (B1860)? ...

Here's some videos I took today during the warmup:

Engine bay shot:
http://www.youtube.com/watch?v=uaGu0jqh_PM

Here's a video if it warmed up almost fully, blip the throttle, and it shutters...

Here's a log file with the PIDs you requested. This is from a cold start to almost hot with no touching of the throttle. At the end, I blipped the gas a few times and it almost died coming back...

This is an E38 ECU, yes.

I will get you a log of those PIDs you requested soon here. I can change base idle spark if you think that will help a bit. The second log I posted is also a concern of...

I understand now what you are saying about the connectors. They're tied up in such a way it would be hard to pull them around and crisscross them.

Yes, I only changed the cam, springs,retainers,...

Attached is the tune file if anyone feels inclined to take a peek to see what's going on.

Thanks guys!


TUNE FILE:
17704

Here is the video link I mentioned. I apologize for the horizontal display mixup. I guess my phone had a different plan than I did. It might be hard to tell the noise I'm referring to. There is...

I'm sorry I don't have much to contribute, but I've run into issues with SEMRET as well. I scoured the E38 and T43 for anything related to torque management and still couldn't find where it was...

Thanks for the response joecar. Are the left and right side sensors different? I know the primary and secondary are different, but I didn't know that there was a left and a right. Let me know if...

Hey all. I've got an issue I'm hoping someone can help me with. I have a 2013 Corvette with the LS7 in it. It was perfectly running before with a Mamba intake, Fast 102 intake (stock throttle...

I'm having some lingering issues that I'm yanking my hair out over. I'm hoping you guys can shed some light on things to try for me. I've read and implemented all the idle tuning procedures listed...

I will try the different plugs. I have them on order. I still don't know if this would cause a lean condition. If the plugs didn't have enough heat in them, I would assume they would misfire and...

Thanks for the help! Those NGK 4711 are TR6 plugs. I'll keep poking around with timing from +3500. If you have any maps you can share, I'd be most appreciative.

Thank you Howard!

Not audible at all. The car does have wastegates vented to the atmosphere so it is a bit loud under boost, but knock is one of those things you always listen for and I don't hear anything out of the...

I'm not seeing GM.KR as a supported PID, only GM.KNKRET on this E38 ECU. Is this going to be a problem?