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I ran the stock return style rail before I switched over to an LS1 intake for hood clearance issues. I probably could make them work with a custom cross over line but I think I will just stick to the...

I just assumed that the injector data in the spreadsheet was for 58psi? I guess ill have to figure that out as well, I think I will send them an email to find out for sure, and yes those are the...

Y?all went back and forth on my last thread 😂

https://forum.hptuners.com/showthread.php?91365-Is-my-engine-choking-for-air-LQ4-SS2-M6&p=649069#post649069

Thanks, this is great info! I just ordered a return regulator and filter and will mount it in place like this dude did his. Hopefully that will take care of a lot of my fueling issues and let me...

I have a walbro 450 pump, corvette return filter regulator, 3/8 lines, factory LS1 rails. I checked the fuel pressure as suggested and its reading 75psi at idle!!! I check the return line for kinks...

My car has been on the lift waiting for a new transmission mount so I haven’t been able to make any changes to the tune. I compared some similar files to see if anything was drastically different but...

So I've been driving, logging and VE tuning and have been running into some problems. I feel like there has to be some ECT fueling adder table that is turned on somewhere that I am missing. all of my...

Oh ok thanks, I had the understanding that NA areas of my previous VE table should be the same with the new injectors as long as the data was calibrated correctly. I went ahead and started tuning the...

I installed the new 2 bar map sensor, flashed 200 and 8 for linear and offset. Started the car and still had similar issues? had to throttle to keep it running. Check my injector data once more,...

My 2 bar MAP sensor (GM 12615136) is supposed to be in tomorrow, hopefully that helps. I don?t see the point of trying to scale the injector flow until I change that.

I made the changes and no more REP!!, but the fueling is still way off. It wont idle until its at least 130deg and still seems to be all over the place. Smells flooded when running. I logged the warm...

Okay thanks! I’ll make the changes and see what happens

Thanks 5FDP,
I have made all the changes that you've suggested except the P1514/0068 table. Should multiplying it by 1.5 be enough or should I increase it by more? Also will I need to "write...

Hey everyone.
Im trying to get my turbo LQ4 build back on the road. It was my in DD in NA form for the past 28k miles. I have watched several of chopperdocs video's on youtube and looked at several...

I try to be respectful to anyone who is willing to take the time to respond to a question that I pose, even if they do talk down to me. It’s the Internet and that happens. I like to feel like I’m...

Thanks, I didn't notice the voltage drop either. I've had tensioner pully problems and belt slippage in the past, its probably time to upgrade to a new unit instead of loosening it up with PB blaster...

Thanks for the wealth of information and prompt responses. I will work on tracking down the IAC wiring issue, run some seafoam through the engine, pick up a set of cheap plugs, and try to redo the...

Cylinder #6
109450
109451

Cylinder #7
109452
109453

Cylinder #8
109454

I didn't notice that actually, I will give that a try.

I just finished doing a compression test. My gauge does not have the sensitivity to report decimals, actually its not very sensitive at all,...

Thanks for the quick responses. I logged a couple 3rd gear pulls this morning, removing the MAF channel as suggested as I have it failed for VE tuning. I also added a current and history misfire...

In the last month or so I've made some big changes to my car. Swapped 4l60 for t56, changed the rear diff and ratio, and did a cam swap with springs. Ive also had a heck of a time with my tuning...

Thanks for the help, Ill give it a shot.

I drove it up the road and back again before disabling the knock sensor codes, scanned it and sure enough there was a code. I then did as you said, disabled the codes and went for another drive. It...

Thanks for such quick responses.

I made all of the changes that you suggested and made another log. I am still getting the KR with acceleration. I also checked the codes and there were no pending...

Hey everyone,

Background:
I am a full time student working on my doctorate in physical therapy. I have done mechanic work all of my life and love working on and driving cool cars. My most recent...