Ugh Injector Duty Cycle Woes
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Ugh Injector Duty Cycle Woes
When I did my dyno pulls recently I saw that I was hitting 80% duty cycle on my injectors and my AFRs were leaning out at the top very rapidly.
Yesterday, I installed a Walboro 255HP (enough to flow for future goals) and changed the fuel filter. It was a messy job and I got high from the gas but everything was buttoned up AOK.
Afterwards, I did some datalogs on the Hydra and saw that my AFRs were no longer leaning out but my injectors were still running at 80% duty cycle about 6000-6500 RPM. My AFRs were around 9.5.
Am I saturating the O2 sensor with fuel now? Is my fuel map just way too top-end heavy because of past autotune attempts with a clogged fuel filter and do I just need to back down those cells?
I'm running 750cc injectors at boost levels of 11psi.
Yesterday, I installed a Walboro 255HP (enough to flow for future goals) and changed the fuel filter. It was a messy job and I got high from the gas but everything was buttoned up AOK.
Afterwards, I did some datalogs on the Hydra and saw that my AFRs were no longer leaning out but my injectors were still running at 80% duty cycle about 6000-6500 RPM. My AFRs were around 9.5.
Am I saturating the O2 sensor with fuel now? Is my fuel map just way too top-end heavy because of past autotune attempts with a clogged fuel filter and do I just need to back down those cells?
I'm running 750cc injectors at boost levels of 11psi.
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