When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hello forum
I put a stock 02 5.3 with a f body intake and a 4l80 in my 64 Chevelle , I ordered the wiring harness and the reflashed cpu from PSI . It started right up ran and shifted but no power what so ever and I noticed my exhaust pipes from the manifold back about 5 feet were getting very hot and turned the color of titanium so I bought HP tuners and saw that all the injector specs weren’t even close so I copy pasted injector specs from a 02 ls1 program that was on HP tuners. Now it turns over quite a bit before it fires up but when it does it seems to have a bit more power but my stock Yukon that’s probably 3000 lbs heavier is faster. So I’ve bout a AMD wide band and soon I’ll upgrade my MPVI2 and get the pro link
So my question is can y’all recommend any good sites to help me get started on tuning so far I’ve been watching the HP videos and goat rope garage?
Thanks for any input
To change anything and be correct will require you to pull an injector, get the part number, look up the injector data for that injector and input all 4 areas to make it correct. Pulling some other tune will usually get you in trouble. After you have the correct info input, you should start on MAF tuning. Maybe goat rope has a tutorial on that. As long as you don't go wot, you can tune steady state---drive around stuff with your STFT's. Turn off LTFT's. Do not do any high rpm stuff without a wideband and a tune that you know is safe---BOOM!
To change anything and be correct will require you to pull an injector, get the part number, look up the injector data for that injector and input all 4 areas to make it correct. Pulling some other tune will usually get you in trouble. After you have the correct info input, you should start on MAF tuning. Maybe goat rope has a tutorial on that. As long as you don't go wot, you can tune steady state---drive around stuff with your STFT's. Turn off LTFT's. Do not do any high rpm stuff without a wideband and a tune that you know is safe---BOOM!
Yep I looked up the part number of my injectors , found the data online and cross referenced it with the sample file HP Tuners had before I copy pasted , today I ordered the pro link for my wide band and I’ll finish hooking up the wide band gauge this week and see if my af ratio is safe enough to drive it 3 hours to a car show this weekend
Thanks for your input
ChopperDoc181 is lesser known and has some great videos on HP Tuners, but Goat Rope has some great stuff too.
A lot of it is going to be trial and error, especially when it comes to idle / spark tuning.
It took me a few weeks to get my head straight tuning, and lots of trial and error.
If you can data log every drive so you can look back and see what might be causing problems, what your air/spark/fuel look like etc.
ChopperDoc181 is lesser known and has some great videos on HP Tuners, but Goat Rope has some great stuff too.
A lot of it is going to be trial and error, especially when it comes to idle / spark tuning.
It took me a few weeks to get my head straight tuning, and lots of trial and error.
If you can data log every drive so you can look back and see what might be causing problems, what your air/spark/fuel look like etc.
Thanks I’ll definitely look him up-that’s why I LS swap Ed my car so I can figure out how to tune it
Hello a little update, I installed the wideband and richened it up enough so I didn't blow it up ( in the past 2 weekends I put over 500 miles on it )
I can definitely hear a miss in the tail pipes but my VCM doesn't pick up anything on the misfire, spark retard or knock sensors ,I'm not sure if there working I have a PSI harness and I'm
not sure if there are enough wires going to the OBD2 port there's only 4 and there connected to the#2,4,5 and 16 port or if something is turned off
Its still taking a bit to start and not idling well and is down on power but im trying to figure it out
Thanks for any help or direction
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.
HP tuner help 
