gst_Jake99
Proven Member
- 34
- 4
- May 3, 2016
-
South Mills,
North_Carolina
Running full rich no matter what?
I have reviewed countless ECUflash threads, including the How-to's. I have been unable to find a problem like mine however, and decided to seek some input from you guys.
Heres the situation: I am able to read and flash my ECU. Ceddymods is working, and with a stock tune under my SAFC-II, the car runs great. I am looking to remove the Apexi unit and tune strictly with ECUflash. There are no boost leaks, both o2 sensors and wideband are functioning, no exhaust leaks. I am running a 16g turbo, walbro 255, and FIC 750s.
I disconnected my negative battery terminal to clear existing fuel trims, disconnected the Apexi at the plug to eliminate any possible interference, set the injector scaling at 750 and the latency to 0.330 as suggested in the how to post. I flashed to rom, fired the car up and it runs pig rich. 10.0 on the wideband. So I upped the scaling to 850, same result. I even attempted setting the scaling to 1000 to try to get some sort of response from the A/F ratios. No success. (Yes, the MAF is plugged in )
I am wondering if this is a tuning issue or a fuel pressure issue since I do not have an AFPR. What is strange however, is how well it runs on the apexi tune even without the regulator. Any input would be greatly appreciated.
Jake
I have reviewed countless ECUflash threads, including the How-to's. I have been unable to find a problem like mine however, and decided to seek some input from you guys.
Heres the situation: I am able to read and flash my ECU. Ceddymods is working, and with a stock tune under my SAFC-II, the car runs great. I am looking to remove the Apexi unit and tune strictly with ECUflash. There are no boost leaks, both o2 sensors and wideband are functioning, no exhaust leaks. I am running a 16g turbo, walbro 255, and FIC 750s.
I disconnected my negative battery terminal to clear existing fuel trims, disconnected the Apexi at the plug to eliminate any possible interference, set the injector scaling at 750 and the latency to 0.330 as suggested in the how to post. I flashed to rom, fired the car up and it runs pig rich. 10.0 on the wideband. So I upped the scaling to 850, same result. I even attempted setting the scaling to 1000 to try to get some sort of response from the A/F ratios. No success. (Yes, the MAF is plugged in )
I am wondering if this is a tuning issue or a fuel pressure issue since I do not have an AFPR. What is strange however, is how well it runs on the apexi tune even without the regulator. Any input would be greatly appreciated.
Jake
Last edited: