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Ok So I got the wiring straight now. I have gotten it to start and idle. Still have to work on trims and maf more but it is running better...until.

This file:127509

On this log it starts...

How are the fans tied in with the a/c? The compressor kicks on if the heat is on defrost. So if the fans have a compressor 12v switched relay that could be holding them in. Just a thought.

Adding to the 2 tables helped but it didnt remove it. But what I did find after turning the LTFT back on is that all the injector wires are in the wrong place. Like 1 and 2 are actually 6 and 3. But...

what size pump and type boost referenced regulator you using?

Once I realized it was a Gen 4 I realized it was scaled.

Is wideband being logged on the scanner? Didnt see it on this one.

also alot has to change to run e85 for stoich. also its a GEN 4 ecm

Need to start with OS change to 2 bar OS, then the correct fuel injector data. Have you changed the map to a 2 bar map? What style fuel system are you running? Fuel pump?

Is that 95lb injectors?

also where is your wideband data?

Changed O2 sensor out and didnt change anything. Pulled the top off the motor and got back down to the injectors and pulled them out. Found crystalized fuel in 6 and 8 and also some gas jelly....

Having an issue with startup.

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127372

Usually starts when cold on first try. When it starts getting up to temp it takes a second try. Then when it is up to running temp it is very hard...

242/236 and .502/.520 114 lsa

Kevin has been helping me figure it out, we changed boost enrichment, eq ratio tables, injector tables. Then the idle a/f ratio leaned out where it was closer to...

Pulled this back out of the back of the shop. Its running in sd. I have cut out 20% more in the ve around idle. or at least what the histogram is showing for idle. wide band and the commanded are not...

Just an update on this. Finally figured it out after a bit of head scratching. But the o2 sensors were bad. I put a new walker set in and trims straightened out. Changed the plugs out to tr6 ngk...

https://www.torqhead.com/index.html

Your control voltage on the ecm is showing 24volts. do you have more than one battery in the vehicle? I was wondering why the load was so high and throttle pedal not acting reading correctly.

The boost pushes back on the fuel system adding 10psi of pressure to the discharge-side of the injector. If your fuel system is set at 45psi, the injector will only emit 35psi of fuel to the...

Need more info. What ecm and motor do you have? I think p1381 is for the variable cam timing module

I would find a new tuner.
Even with the numbers on the logs and the map sensor linear screwed your making enough boost to push your fuel pressure down to 45 psi. That?s why you need a boost...

your map characteristics are still wrong more than likely. need to look up the 2 bar map sensor characteristics for the one you have installed. probably going to be 200/10.33 though. then you will...

Pretty much need to start over. Your ve is all over the place and with that cam it is curving in the wrong place all together. Timing is also all over the place and not smooth. That cam starts making...

I would hope not since it?s the stock harness but I will check. I think the alternator wire goes through the same loom so it should be correct but I will check it in the morning. I think I?m going to...

Two brand new sensors, pulled them and swapped them and made sure that when I pulled them I watched the scanner for the numbers to change. Several times just to check. I can?t figure out why it swaps...

2004 tahoe 5.3 w/ a bazillion miles. Truck norris cam in it. It runs but each time I start it up one bank will drop toward .000 on a o2 sensor. It changes each time I try to run it. I dropped the oem...

10-4 Ben