Activity Stream

Agreed. Especially if they're OEM cats and not aftermarket hi flows.

He should start his own thread instead of bumping a nearly 10 year old one.

No Sir. I do have the Serial to USB adapter. So those directions get e to step 8. Then I should choose Parameter, engine, exhaust, gas...

Sounds more like a pump failure unless maybe if you are running the tank mostly empty. Or did you mount pumps somewhere outside of the lower portion...

You should post the tune and a log of what you have now. The tune Tom355 posted was incomplete.

That's a pretty broad question. You should at least include your tune and a log, as well as what you'd like to improve.

Efi got back to and stated CORE ECU will work with my current cable throttle body. Is this accurate?

Log is showing IDC goes to 57% and then everything goes lean. Looks tune related, not fuel related, but IDK. Would need to look at the tune...but the...

Heres 2 tune files. Load log 5 and go get a short log just to see if the changes takes care of the knock. Im hoping it should be gone under load now....

Personally, I am going to keep the cats, then I am going to keep the rear O2s. The ECM will be much happier.

I don't think there is anything you can realistically do other than compare the knock settings from the other ECM's and copy them over. Any signal...

I?m guessing there is no real issue with keeping them either. So long as the cats are working correctly, no added headaches?

Thanks, Cringer I realize the knock sensor is the same between the two engines, however I'm concerned that the "Signature" of knock is different....

Without rear O2, a slight odor will be noticeable for the first 2 minutes after a cold start.

I recently installed two Aeromotive 340s (replaced a single Racetronix 255) and I have a boost-referenced return style regulator on the rail. The...

Can literally be 20 things. Going to have to post tune and log.

it still has some ping at lockup in OD in the 1600 rpm range but not to worried about that

Man.. I been out of the tuning game too long now. XD

This LS3 knock sensor (PN 12623730) is used on many different vehicles. Scroll down to Vehicle Fitment to see all the models it is used on. ...

audible knock ? post a log maybe someone finds something in ti

What?! https://www.hptuners.com/my-account/tunerepository/

Very Nice!

If you haven't already, jack the car up and put the rear on stands or up on a lift (not sure what you have access to), start the car and have someone...

As mentioned I will be running a charcoal canister ( vapor trapper ) I agree that?s part of the equation but only half. I also want to eliminate the...

https://forum.hptuners.com/showthread.php?107464-Gen-3-VE-Tuning Post #2 i talk about fuel trim tuning. Its a bit dated but it covers most of it...

5.1.4654 able to read ECM file, but still fails checksum... OS: SR3A-14C204-AEC #499154

Heres 2 versions of your tune put into either MAF only or SD. Like alvin said, If its running MAF, then log in MAF only and see where youre rich....