K4fxd
Well-Known Member
Some tuners only let you log what they want you to see.He should be able to log LAMBSE with SCT if he adds it to the config file.
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Some tuners only let you log what they want you to see.He should be able to log LAMBSE with SCT if he adds it to the config file.
With SCT, you log whatever PIDS you choose. The tune file cannot block PCM PID data available through OBD access.Some tuners only let you log what they want you to see.
I don’t believe many are those are necessary, since the data shows it’s trying to continue to demand a lower targeted lambda by increasing STFT delivery all the way up through the RPM range. Fuel volume is the indicated issue IMO.I'd like to see fuel/air commanded equivalence ratio, fuel pump duty cycle, absolute load in percent, MAF flow rate Lb/min, and fuel rate in addition to what he is logging. I'd get rid of the transmission PID's
I'm using the config file PBD provided I didn't even think to search for othersHe should be able to log LAMBSE with SCT if he adds it to the config file.
I believe it how the transition starts toStill would be nice to see commanded lambda. Get rid of MAF frequency and replace it with Lb/min Get rid of the trans PID's.
It is real strange that it is adding more fuel to get .81 lambda on 91 gas than on E85. Makes me wonder if the tune is calling for .76 on gas or ??
I would create your own config file as well for what YOU want to keep eyes on as well. There’s a few things missing on yours I like to see myself like K4xfd mentioned.I'm using the config file PBD provided I didn't even think to search for others
It’s making a comeback!It's been a long time since I have used Live link or SCT
The correct PID's are not logged to calculate it and as far as I know live link doesn't have a channel for it.What is the injector duty cycle at, at WOT at the top of a pull?
3.0 pulley with stock lower is 13psi.Hey all, I've been trying to wrap my brain around this issue but I think it's time to ask for help from people much smarter than I. Working with Palm Beach Dyno to get my car dialed in and car is going lean at wot on every single pull.
2015 GT Premium A6 3.55
Edelbrock 2650 3in pulley (not sure how much boost its making dont have a guage)
Stainless Power 1 7/8" catted headers
GT350 TB with adapter
Stock airbox
NGK 6510 gapped to .024" per PBD recommendation
FIC 1000 95lb/hr
Lethal Performance lvl 1 Return style fuel system ( 2x Walbro F90000274 (465lph High Pressure E85 Approved))
Forged Bottom End 10:1 Comp bored .005 over
Built Trans
Entire build has less than 5k miles on it save for stock heads
Tuning with SCT X4
Anyways, car is going lean at wot and I'm stumped as to why. Have fuel pressure regulator set to 44 psi at idle, both pumps are running, wiring seems correct (ugly and done with butt connectors because I plan to clean it up later but works), no leaks, no kinks, so seems that everything mechanical is solid to the best of my knowledge. I was told that the level 1 would be good for up to 800 wheel horsepower which was perfect for me because my goal was 750. I feel like my build is rather tame, and I don't think I'm above that 800hp mark (it is being street tuned so i don't have numbers but the butt dyno says I'm not there) so this fuel system should be sufficient. Long story short, I'm stumped.
If anyone is a data log wizard and thinks they can diagnose this through there I would be happy to share. Only thing I can think of is that I'm running out of fuel but that just shouldn't be the case based on what I was told so I'm just hoping anyone has some better ideas as to what it could possibly be.
Thank you!