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No sir. I?ve experienced that before and was able to get it corrected. Unfortunately this is different.

I had a similar problem before where the iat was causing that problem. It was due to a couple of things. First, the iat sensor was getting heat soaked and then reading incorrectly. Second, the iat...

Thats what I was kind of thinking also, but I dont think it could be the case since I put the old ve data back in and it still ran lean. If it was bad injector data it should have gone back to being...

Hello All,

I've got a 4.8 on the 0411 ecm. I have the 3 bar os running in OL. I just had it out and was doing some VE tuning. I logged the WB error % and multiplied the VE table by %-half. It...

BTW, I suppose you saw this;

"[ECM] 255 - Dynamic Airflow - Use Charge Temperature Model: When enabled, the VCM will use a complex charge temperature model to calculate manifold air temperature....

Bump. Anyone have some more ideas?

Thanks for the info!

Yeah the iat isn't getting hotter than normal it just has the option of getting down to ambient. It's going to see some pretty big swings sometimes with the turbo though.
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Yes sir, sorry I didn't post that the first time, I know better. I've attached both the log and the tune now. You'll notice in the log that it is very lean at idle at the first part...

Here's the problem I have been having, any help would be greatly appreciated!

I'm having an IAT based fueling problem **i think**. It's an Gen 3 LS with the 0411 pcm running a 3 bar SD Tune....

I have been working on a 2002 4.8 engine and computer with a 4L80E segment swap. I had been tuning the transmission and engine and everything was going great. I temporarily maxed out the TCC...

Also, if I leave the shifter in 4th, everything shifts down and up more or less normally. It goes down to 1 like it should at a stop and runs up through the gears like it should from acceleration. ...

Need Help! TCC and transmission shifting issue. Currently my torque converter is locking up when it shouldn't be. It locks up at low speeds (less than 50mph) even though the tables have it coming on...

I'm out of town but I'll get a 2.24 tune put up Wednesday. It runs in my mind though that I tried to read it with 2.24 and it didn't like it, but I'll try again

529215292252923I still can't get this thing to run. Here is the latest tune and log. If anyone has any insight into whats going on, that would be great! I just verified the power and 2 grounds on...

I also tried mil on first error and that didn't work. I'll try no mil light and see what that does

Pump turns on and pressure at rails. I pulled injectors and rails and the injectors are spraying fuel. If I pull a spark plug I can't see any spark but I must have had spark at least at one time...

Oh, my bad. Thanks for the tune I'll have to do some checking and see what's different between the tunes.

I have just installed a gen3 4.8 out of a Silverado in my Fox Mustang. Engine has Pac1218 valve springs, 80lb seimens deka injectors, and TR6 plugs gapped to 0.025. I upgraded to the 3 bar OS, and...