Isx over fueling rear bank

[Rawze]

The first problem is to get the ecm programming fixed.... you have a horribly bad, engine killing delete!


next ... will it pass an injector leak test?

What good is it to monitor fuel return line rates if it will not pass an injector leak test?

I would imagine that a lot of what your chasing is due to bad programming or damage related as such. the company you mentioned has killed more engine with bad programming that you can shake a stick at and they are absolutely clueless, brain-butchering, engine killing monsters.

A lot of your issues sounds exactly the results of the typical horrible delete programming that plagues the trucking industry... especially for the ISX. A lot of what you describe are symptoms that set in over time, or sometimes right away after bad programming. Last program i looked at by those idiots, they had the injection timing jacked all the way up to +11 and +14 degrees BTDC. Thing like Raw fuel smell ... eventual damage to injector tips, subsequent injector leakage problems, back=-pressure from the cylinders getting into the IFSM due to the abusive injection timing, injector tips and cylinders, causing damage, etc.etc.etc. ... right along side excess cylinder liner friction, and eventual head gasket failures.

We have seen this hundreds of times on here... your caught up into the brain-butcher big-name delete garbage narrative, front and centre.

here is the last person who came on here with a deleted CM870. Yours is most likely going to be worse that this one .. as those companies trade each others horrible tuning programs around like a disease, but the place you mentioned usually adds insult to injury as well ...
http://rawze.com/forums/showthread.php?t...4#pid61094

here is where your education starts...
http://rawze.com/forums/showthread.php?t...5#pid13255

grab an inline-6 adapter off ebay if you don't have one already ... get the Sfwre to download the ecm program out of it and e-mail it to me for review... I will tell you exactly what someone has done to it.

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NEXT would be ... What hardware mods have been done to that thing?. Does it still have the factory intake and exhaust manifolds on it? -- factory turbo? .. etc.etc.?