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Dave, I’m open to suggestions! I just want this engine to run good, with minimal issues. What do you recommend? Thanks! Ben Smith

Is MAFless an option? dave w

It is an ETC setup. I believe the TAC, pedal, etc. all came from the '03 donor Silverado. Thanks for the warning. We will try to keep everything but...

Here's a link to diagrams, but I'm not sure which of the colored PCM connectors pin 40 T side is....

That explains why I cant find another 03 Silverado cal to compare your bin to. The most important thing I've found on swaps using blue/green PCMs is...

I got the bin from here, specifically...

^^^The last truck I tuned that had "cruise control" had a leaking vacuum booster.

Interpolating a MAP based timing table into a Cylinder Mass based timing map might get a bit interesting. LT4 Hotcam also likes a pretty different...

And where did you get that calibration. Checking the VIN in your bin with GM TIS2Web, there is not a single segment that matches what is correct for...

Sorry I didnt update the post, I had some other stuff come up in life and I was falling into a deep depression and had came up withthis crazy ass...

I think you have some other problem that you are masking or as I call putting a band aid on to solve that problem doing that to those tables. I see...

Setting allow Throttle Cracker Table values >1 to 1 did not solve the problem. I set all the value to zero and also set B4311 - Throttle Cracker...

Every project ultimately has to reach a decision; is good enough, really good enough or is there something better? The ICM cannot be programmed to...

Hey, DaveW, et.al., Question: i've heard the term 'computer controlled timing', which in my mind, says the ECM is controlling the timing vs. what...

I understand the desire to get a jump start with a tune. According to Wikipedia https://en.wikipedia.org/wiki/Chevrolet_small-block_engine#LT4 the...

Is it possible that this is the issue I'm having? Below is another members post! So I finally figured out that the park/run IAC offset was too low...

David, Thank you for pointing me in that direction! I was merely hoping someone else who might have a similar setup could give me a “jump start” in...

Good Morning sgtbilkodle, Could you go into more detail on how you corrected this issue? I've been having the same issue and everything I try...

I was able to talk my dad through uploading the new image to his PCM. I used 2xls1's suggestion to set all of the values >1 to 1. Dad will run the...

After adjusting to paper thickness, reset TPS voltage = 0.55 volts dave w

As a ballpark adjustment for the throttle blade opening, try adjusting the throttle blade opening by pulling a strip of paper about 1/2" wide x 4"...

I would open the butterflies, cycle the key and then reset the TPS. I continued that until the counts were near 10, at that point the idle was...

Dave, The AFI system I tuned had a Moates adapter and an Amtel 29C256 flash chip installed. Not sure if he did them all like that or if someone...

If your throttle blades are "waaaaay open" and your TPS voltage is .55 you have a strange problem. What is the TPS voltage when the throttle blades...

As a ballpark adjustment for the throttle blade opening, try adjusting the throttle blade opening by pulling a strip of paper about 1/2" wide x 4"...

Yes, its nearly closed. but the throttle blades are waaaaaay open. If I jumper the ALDL and turn the key on, I can pull the IAC plug when the plunger...

At 6-9 counts the IAC will be nearly closed. Can you confirm that by looking at the idle air passage? What happens if you put you thumb over the...