l92Firebird
September 10th, 2014, 02:18 PM
In power enrichment mode, I command an AFR of 12.19, but wide band says 10.00. Is there a setting that I am missing?
When I chart gm.volt and sae.vpwr, I see my voltage drop to 11.4 as RPM's climb. Any idea what causes that?
When I graph E38.APCYL_DMA and SAE.MAF the seem to run parallel and then at higher flows, SAE.MAF shoots up. Is that my whole issue?
Anyways, the car is a 1969 firebird with a 2007 L92 and a 4l80. Small cam 217/228 0.600". Speartech harness. LS3 intake/TB/injectors. LS7 card MAF. My tuner gave me a 2007 L76/4l80 tune to put on the escalade E38 ECM to get running. Starts and drives nice. Wouldn't know there was an issue without logging.
In the tune, I changed: Injector: IFB to 2007 ls3. Intake size info to 2007 ls3. MAF/IAT to 2008 z06 tables/axis/ohms/scaling. VVE tables (VE IMTV OPEN and CLOSED) to 2010 L99 Camaro and thought that would reflect car intake vs. truck intake better. Spark tables and PE Commanded fuel were on tune when given to me by tuner.
Look at my tune and log and tell me what you think. I will be going to tune at end of month but want to put some miles on the drivetrain prior to going to dyno.
Thanks
When I chart gm.volt and sae.vpwr, I see my voltage drop to 11.4 as RPM's climb. Any idea what causes that?
When I graph E38.APCYL_DMA and SAE.MAF the seem to run parallel and then at higher flows, SAE.MAF shoots up. Is that my whole issue?
Anyways, the car is a 1969 firebird with a 2007 L92 and a 4l80. Small cam 217/228 0.600". Speartech harness. LS3 intake/TB/injectors. LS7 card MAF. My tuner gave me a 2007 L76/4l80 tune to put on the escalade E38 ECM to get running. Starts and drives nice. Wouldn't know there was an issue without logging.
In the tune, I changed: Injector: IFB to 2007 ls3. Intake size info to 2007 ls3. MAF/IAT to 2008 z06 tables/axis/ohms/scaling. VVE tables (VE IMTV OPEN and CLOSED) to 2010 L99 Camaro and thought that would reflect car intake vs. truck intake better. Spark tables and PE Commanded fuel were on tune when given to me by tuner.
Look at my tune and log and tell me what you think. I will be going to tune at end of month but want to put some miles on the drivetrain prior to going to dyno.
Thanks