Running way lean help
Quote from Austin DeHaas on May 4, 2019, 1:38 pmLet it learn
okay but do just let it idle or drive it around? i don't want to burn a hole in my pistons, let alone have it bog down at every stop sign or stop light any more info would be great
thanks
What is your fuel pressure when it goes lean? How long does it go lean before the unit compensates? Your log does not show the lean condition....
Just heads up the log files sample rates are slow and do not catch some things. Also I would like to ask are you using just the handheld or are you using the procal software? Since your are running a power adder system I assume you have set your Kpa boost ranges, Cam AFR ranges for boost and your spark timing. What fuel are you running? How much boost you planning to run?
Quote from Austin DeHaas on May 4, 2019, 4:11 pmWhat is your fuel pressure when it goes lean? How long does it go lean before the unit compensates? Your log does not show the lean condition....
With the new Walbro 450lph fuel pump everything stays at 58-62psi . My other issue is that iac keeps a fault code after replacing it , but the step are within spec 2-8 at idle.
Quote from rrobins on May 6, 2019, 10:38 pmJust heads up the log files sample rates are slow and do not catch some things. Also I would like to ask are you using just the handheld or are you using the procal software? Since your are running a power adder system I assume you have set your Kpa boost ranges, Cam AFR ranges for boost and your spark timing. What fuel are you running? How much boost you planning to run?
I was data logging with the handheld, if the procal is faster I'll check it out . I set the AFR to 11.5 WOT to be on the safe side. I haven't messed with the spark timing I'm ignorant on that. I figured the kit would figure it out for me. I'm using 91 oct . Any info would be great I'm learning . Current wastegate springs are just 10 pounds.
If you are getting IAC codes, your grounds are most likely not correct. LS system is very sensitive to this. 2awg battery to block, 10awg battery to frame, 10awg battery to body. Also check your ground connections from ecu and coil harnesses.
My grounds are fine . I run 0 gauge from battery to frame to body and to the block. This kit is a pain.. If the ground were bad would't the coil be the first to react weird?
All I can tell you is from experience. I have seen this before and it will either be ground issues or electrical interference.
Quote from TheStig86 on May 7, 2019, 12:31 amQuote from Austin DeHaas on May 4, 2019, 4:11 pmWhat is your fuel pressure when it goes lean? How long does it go lean before the unit compensates? Your log does not show the lean condition....
With the new Walbro 450lph fuel pump everything stays at 58-62psi . My other issue is that iac keeps a fault code after replacing it , but the step are within spec 2-8 at idle.
Quote from rrobins on May 6, 2019, 10:38 pmJust heads up the log files sample rates are slow and do not catch some things. Also I would like to ask are you using just the handheld or are you using the procal software? Since your are running a power adder system I assume you have set your Kpa boost ranges, Cam AFR ranges for boost and your spark timing. What fuel are you running? How much boost you planning to run?
I was data logging with the handheld, if the procal is faster I'll check it out . I set the AFR to 11.5 WOT to be on the safe side. I haven't messed with the spark timing I'm ignorant on that. I figured the kit would figure it out for me. I'm using 91 oct . Any info would be great I'm learning . Current wastegate springs are just 10 pounds.
The best advise I can give you right now is not get into boost or put the smallest 5 lb or less. Fitechs boosted timing tables are to aggressive and will blow things up. There are to many variables here to give advise like forged bottom, new built,old motor with new Fitech. I personally if it was me and i had a new install or new build is to dive on the system for 200 or more miles let it learn running no boost and then start getting into the meat of timing tables,AFR,RPM,Kpa ranges. Even then you would want to start real conservative with timing and boost. I started at just with a 5 lb spring first. I don't want to give you the wrong advice Stig and hurt your motor.
Quote from rrobins on May 7, 2019, 3:36 pmQuote from TheStig86 on May 7, 2019, 12:31 amQuote from Austin DeHaas on May 4, 2019, 4:11 pmWhat is your fuel pressure when it goes lean? How long does it go lean before the unit compensates? Your log does not show the lean condition....
With the new Walbro 450lph fuel pump everything stays at 58-62psi . My other issue is that iac keeps a fault code after replacing it , but the step are within spec 2-8 at idle.
Quote from rrobins on May 6, 2019, 10:38 pmJust heads up the log files sample rates are slow and do not catch some things. Also I would like to ask are you using just the handheld or are you using the procal software? Since your are running a power adder system I assume you have set your Kpa boost ranges, Cam AFR ranges for boost and your spark timing. What fuel are you running? How much boost you planning to run?
I was data logging with the handheld, if the procal is faster I'll check it out . I set the AFR to 11.5 WOT to be on the safe side. I haven't messed with the spark timing I'm ignorant on that. I figured the kit would figure it out for me. I'm using 91 oct . Any info would be great I'm learning . Current wastegate springs are just 10 pounds.
The best advise I can give you right now is not get into boost or put the smallest 5 lb or less. Fitechs boosted timing tables are to aggressive and will blow things up. There are to many variables here to give advise like forged bottom, new built,old motor with new Fitech. I personally if it was me and i had a new install or new build is to dive on the system for 200 or more miles let it learn running no boost and then start getting into the meat of timing tables,AFR,RPM,Kpa ranges. Even then you would want to start real conservative with timing and boost. I started at just with a 5 lb spring first. I don't want to give you the wrong advice Stig and hurt your motor.
Good info yes everything is new and forged from Manley . This is beginning to be a pain in the you know what. I just wanted to plug it in and go drive easy for 500-1000 miles. . This car is finished it's 1969 camaro twin turbo pro touring build. I don't have time or the money to take turbos off etc. Beginning to think this was a waste or time and money with their kit . On the engine dyno we used an aem kit fired right up no issues using all of fitech sensors etc . I don't know what to do now.
Quote from Austin DeHaas on May 7, 2019, 12:14 pmAll I can tell you is from experience. I have seen this before and it will either be ground issues or electrical interference.
I'll check and get back to you