You should verify where his FP regulator is before you tell him to set up his IFR table like that. 01 Silverados still had the regulator on the rail and was vacuum referenced with a return to the tank. It is unclear if he retained that with the Magnuson,Quote:
Originally Posted by 93camaro_zzz
You are gonna tune it in SD correct?Quote:
Originally Posted by kawilliams06
POWERZONE: I do have it set up for 2 BAR SD. I do have a fuel regulator essentially where the stock one is located on the fuel rail on the Magnuson because its a fuel return system.
Ok, just remember, if in SD, you will make your fuel corrections(part throttle and PE) via the VE table.Quote:
Originally Posted by kawilliams06
Make sure to fail your MAF.
I do currently have the MAF 'failing high' with frequency set to zero; I also have the airflow to frequency zeroed out. So is the fuel injector table that 2xLS1 provided acceptable for my vehicle application or should it be different? I have 44 lb injectors that output 43.85 lbs at 58 fuel pressure. p/n 17113739.
I tweeked a few things and was wondering if they could be looked at before I load it and run it. Thanks.
I started back at one. with the ver1 with nothing more than the 2 bar enhancement added and the VE table 110 line copied to 210 and multipled by 1.25.
Ver4 is after a few looks and tweeks.
Attached is the log when I ran the tune you provided. There is a little bit of knock, so I'll be adjusting the Spark tables to align with the suppression of knock. I'll also be adjusting PE EQ ratio to add a bit more to get my AFR closer to 14.4ish. Any other suggestions?Quote:
Originally Posted by mecanicman
Why would you adjust PE to get to 14.4? Your config has a lot of nonpertinent info. Get rid of maf, and everything under IAT except tps in left column. Get rid of everything between cylinder airmass and afr high res in right. Put both o2 and both stft back in.
I did another run with the log set up the way you suggested. What should be adjusted to richen the mixture? I did adjust the main spark table as as much as the know showed it was retarded.
Make the changes I suggested and run another log. I want to see something.
will do. I'll post it sometime around 3 PM EST.
The AFR I am talking about is in your part throttle areas not your PE/BE. Leave both Boot EQ and PE EQ tables alone, you do not want a 14.4 PE or BE for FI or even NA. Your PE/BE is not the problem. Your are lean and need to make adjustments to your VE table not PE/ or BE. You make these adjustments for part throttle from the data from either LTFT's or STFT's. Whatever you choose. I use the LTFT's for part throttle.Quote:
Originally Posted by kawilliams06
Also thats why I suggested you use that very conservative spark table so you can ease into where you need to be vs. chasing your tail guessing what the truck might like. Your truck will load up differently than a car especially if its lighter.
Part of your problem is your are still lean and the other problem is the spark table.
Try the changes that mecanicman suggested and concentrate on getting your part-throttle correct.
Here's the log with the suggested parameters set. Also when i start to leave vacuum and come under boost the truck 'sputters' and loses acceleration until it hits about a pound and then its fine after that.
Your wideband is either wrong, or not calibrated correctly to hpt.
Delete stft avg, leave sae. Ad o2 sensor voltage b1s1 and b2s1. Post your tune as you ran it in the last log. Then, do a fresh air calibration on your wideband. Program it to 2.5 v for both your high and low number. Make your formula v/1+0 in hpt, look at it in the wideband histogram so it averages, what does it show? Vehicle must be running when you check this.
I didn't provide that IFR table. That is a quote from another member. With a return system you should have the same number is every cell of the IFR table. I was pointing out that telling you to set up your table as suggested would be wrong for a return system.Quote:
Originally Posted by kawilliams06
My apologies 2xLS1, I mis-quoted you.
mecanicman attached is the printscreen for the setting i have now set on the VCM scanner and the LM-2 is programmed. I'll be posting shortly a run with the new setting. I did re-preform a fresh air calibration on the wideband as you requested.
The resulting log is posted.
I have modified your file with stft that your narrowbands and pcm you say need. Do you know what I am getting at with instructions for the wideband? Correcting the offset?
ok, change the formula to v/1 + -0.12 and run again.