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To answer the question "did I get anywhere with this tune"? No, it was a tune I paid for on a very stock truck that I wanted to use to help me understand what changes were being made and why. In...

I know this thread is long dead, but I have that SAME vin number showing up on mine as well and used up 2 of my credits. I googled the VIN and this thread showed up? I already sent support a...

OK, I went back and re-did a bunch of VE and some MAF tuning. Went for a long cruise and it seems much more in line with the LTFTs. No idea how I screwed it up before(NOOB). Unfortunately the...

Thanks for the help. That is the process I used(even GRG's videos). I'm leaning toward changing my formula on my WB voltage readings to offset it and get closer to what the NB sensors are telling...

The 0-5V output from my Innovative LC-2 is being fed into the EGR input on the PCM. That is being converted to an AFR reading using [2811.10]/0.332446809+7.35 there were a couple of different...

No, and I'm new enough to this that it's entirely possible I totally missed something when I did it. I used the tutorials found here and on youtube to get the tune and histograms setup for the...

Thanks for the reply. I'm not sure why the trims are adding fuel. It could be the NB sensors placement, or maybe some voltage offset issue when comparing the NB with the WB sensor readings? But I...

I've been trying to dial in the tune on my 5.3, and it's running really well. The problem is it's reading knock when I go WOT, but only sometimes. I cannot pin down why it's reading this, let alone...

Any ideas on what might cause this? The readings do return to normal a minute or so after plugging the injector back in. PCM grounding issue?

I'm working on pinning down a P200(injector issue) that sometimes comes with a p300(random misfire). While working on this, I was logging and unplugged one of my injectors. This seemed to cause me...

More recent log file attached. It seems to run OK until closed loop, then it says it's reducing fueling, but something is going haywire according to the smoke that starts coming out of the...

The O2 sensor bungs on these headers seem to shroud the sensors. This does not seem right and now I'm thinking the O2 readings have been way off from the start.

Can anyone confirm if this looks...

Thank you Kevin, got it updated, did a run with your changes and definitely an improvement. Log attached. It is still pretty rich however.

Do you think I should pull even more from the VE table...

Huh, I have 4.4.2, which says it's the latest, are you using a beta test version?

Yes stock injectors. I could not open the file for some reason, "unsupported or newer version detected", but I have the latest software revision?

DId you just set the MAF fail frequency to 0?

Unfortunately no, hoping to work on it some tomorrow.

Makes sense, but during open loop it does the same, and with the O2s unplugged, same, very rich.

60psi on the gauge while idling.

We thought about that as well and have 2ft pipe extensions off of the 3inch header collectors. The readings could still be off due to the O2 placement on long tube headers, but wouldn't it read lean...

I'm attempting to help a friend of mine get his new 5.3 build running but we are chasing our tails trying to figure out why it's so rich. It's just the engine sitting on a 68 Camaro subframe. We...

I'm confused about the last part, what did you set to 5.000?

Here is a more recent log file, much improved, but still getting some KR. I think maybe now I'm getting too aggressive with the...

I'm trying to pin down whether my fuel pressure is staying where it should be. I've installed a sending unit to monitor the pressure while logging. i suspected I had an issue when trying to get my...

Sorry, yes, that's what I meant, lowered it to .300, but the 1-2 didn't seem to care.

NGK TR5IX Iridium Spark Plug of of Amazon. I have read good and bad about NGK s

Thanks you for taking the time to help. I upped the shift timing, but it is still pretty much doing the same thing. It does seem the warmer it gets, the worse the 1-2 shift, and the more it will...