Defintely need to change some things first before you do any tuning. You are logging too much data in the scanner, only log what you need. Your long term fuel trims are adding about 10% and its still...
Type: Posts; User: 01SLPSSM6
Defintely need to change some things first before you do any tuning. You are logging too much data in the scanner, only log what you need. Your long term fuel trims are adding about 10% and its still...
The correct cylinder volume is important in a P01/P59 pcm. It uses cylinder volume for speed density calculations, actual cylinder airmass, etc
Short pulse limit should be 4.000ms
Add timing...
Also, you are logging too many pids in the scanner, only log what you need.
In addition to what Ben said, i noticed a few things you need to change, the cylinder volume is wrong for an LS3, assuming you are using LS3 injectors? The data looks similar, but is incorrect, the...
Yes, it does remain at 100%, but it also seems to be the point where the fuel pressure starts to drop shortly after it hits 100%. I commanded it to be 85 psi to see if it would allow it to at least...
The pumps should support the current power level, i wanted to install an external regulator, but he wanted to cheap out and try the $400 option lol. Something in the fuel pump control module is...
Hey guys, having an issue with fuel pressure dropping at WOT. 2014 CTS-V ID1300s, DW-300 fuel pumps with the regulator that comes in the kit, (2 340lph pumps) currently 680 rwhp on E85. Vehicle had...
Putting this out there for information in case someone runs into this problem. I am sure at some point that somebody will be working on a car that has had a cam swap or engine replacement and have...
Thanks for the reply, i appreciate it. I installed the Deatschwerks DW300-C 800 HP CTS-V twin pump kit.
When calibrating the FPCM for different fuel pumps, do you change the injector flow rate data in the fuel pump control module too? In the FPCM, it only goes to 63 lb hr max flow rate and the ECU is...
Did you have the TCM reprogrammed with gm software? There is a service bulletin for that dtc to reprogram the TCM software.
Don't forget to re-scale your timing table and lower your spark timing, copy high octane to the low octane table too. Your MAF should not be that far off, the changes were minor but definitely check...
Check your injector data like mentioned and post a File and data log.
Well you can double check with them on that, but that is what i found under LS3 90 LB/HR. As far the misfire issue, that cylinder 6 spark plug has a lot of black spots on it which is usually an...
You're welcome. The injector data is not right, flow rate, short pulse limit and adder are a little different than what is in the data sheet. I changed the data for you. Make sure when you are done...
What injectors are you running?
Look at your misc cutoff wheel speed limit, ( FUEL>CUTOFF>RPM LIMITS>MISC CUTOFF) the limit is at 5500 RPM at anything over 14 mph. Stock value is usually at 7,000, you need to raise the Rpm limit....
Post a file and datalog.
Ok, was trying to let you know what you were getting into lol. Looking at the log, there is no way that air fuel ratio could be "fine" look at the BARO sensor it is reading boost pressure, The...
The result of low spark advance would be giving up horsepower and producing higher EGTs by igniting the air fuel mix too late. Rough maf curve is going to give you incorrect air fuel ratio,...
By that i mean the MAF Frequency table, look at a stock maf curve attached for example its smooth and linear, with no drastic increases or decreases in airflow, most of the toons out their are rough...
It was the first thing i saw when i logged on its your lucky day lol.
Stock File ECU only, but it is an auto file.
The file you posted is not stock. To be honest, that file needs some work. The maf transfer curve is rough, need to calibrate VVE and re-enable it, spark advance is low.
Blindsquirrel, thank you for all of your help. The truck is a 2011, so I flashed a V8 vin from a 2011 Colorado V8 5.3 file via TIS2 and it fired right up! So far everything appears to be working...