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Didn't see the last two posts sorry. Had to reload the page. I'll start trying stuff tomorrow. Only had 4hrs sleep in the last 3 days.

Okay, for everyone who is willing to help. No jokes. After my last post while I was trying to figure out your suggestions on unexported log files, non-SAE channels and broken throttle blades I had to...

As they say, Ran when parked. That was before I took it to the port in San Francisco to put it in a private container to ship to me in Ireland. It hasn't run since it got here. I checked the throttle...

Well crap. I don't know how to make or post an un-exported log file. And how do I add channels? Sorry for being a dim bulb. But my appreciation 'shines bright like a diamond." :worship:

I was just testing the physical wiring to make sure it hadn't been broken somehow.

I hope that worked.:confused:

110122

110121

I'll try to run a log tomorrow.:cheers:

UPDATE:
I fabricated the smoke tester and found that the vacuum fitting for the power brake booster was loose. Fixed that. Extended smoke testing fouled the plugs so I cleaned them and scanned it...

Injectors were replaced with same part number new injectors. I'll work on the smoke testing. Thanks for the tips!!!

I tried carb cleaner around the engine and gasket areas and it doesn't seem to have any vacuum leaks. I can't road test the car because it's on stands in the barn. Could it be a drive cycle issue?

.hpl

Here are the .hpl and .csv logs.

Well, the problem hasn't gone away. I installed the new fuel pump and I'm maintaining 58psi. I still have the ignition timing bouncing a bit but my throttle angle has dropped from 24% down to about...

Confucious say, Squirel not so blind. I requested help from numerous sources across the spectrum from hot rod builders, tuners, motorcycle mechanics and even my daughter. Everyone pointed in the...

THANK YOU EVERYONE! Wouldn't have known where to start without the guidance here. It looks like I got a low pressure pump! No bother. Too much trouble to argue with them. I only care that I can get...

I also checked for any other exhaust leaks or vacuum leaks and found none. Only leak I did find was the damn upper radiator outlet from the water pump. The stupid pressed in metal pipe. Who thought...

Full exhaust with mufflers. I can hear a slight exhaust leak downstream about two feet after the stock manifolds. I have a connection there where the exhaust goes behind the running boards. I'll have...

Proxses, thanks for the reply. I'll check the fuel system again from back to front.

Problem: Poor bouncy idle

Engine Application: 1951 Chevy Suburban with 2005 GMC Envoy Denali, 5.3L V8, LH6, 4L60e, completely stock engine except for an AEM dry filter. Has DBW throttle and DOD.
...

So if I add the "switches" and wiring to the standalone harness the TUTD should work. I guess now I just have to study HOW the truck system works in comparison to the Corvette. Living in the...

Well after six years of jerking with this powertrain I am up and running! I installed the harness, replaced the electronic pedal and the throttle body. None of this was the issue. John at...

I'm doing initial planning on a pro-touring, air suspended, L9H 6.2L / 6L80E powered 1954 GMC Suburban. What I need help with is:

Is it possible to physically(?) and/or electronically(?) add the...

I'm thinking that LSX378's post means that if you post your tune others may be able to help you?