Fuel Cut problems st165

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Fuel Cut problems st165

Postby unaffiliated » Sun Jun 29, 2014 7:45 pm

So I'm having fuel cut issues with my st165 gen 1 3sgte, just installed a fuel cut defender, before i was hitting fuel cut at around 10.8lbs so now it should be around 16lbs and I am able to get 12lbs safely until I get into higher rpms, when I get to around 5-6k rpms I hit fuel cut even though by then it is running 12lbs steadily... any ideas?
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1988 Toyota Celica

Re: Fuel Cut problems st165

Postby Mafix » Sun Jun 29, 2014 10:31 pm

welcome to the fun of a 165. some of the computers (not all and i don't know the difference) have 3 modes of fuel cut. one is boost pressure. one is "safe" mode. the final uses the AFM signal. all 3 of my computers did that (2 usdm, 1 jdm). that's the best i ever figured out before just saying f- it all and buying my first stand alone unit. which i've since replaced with a unit that has support on this side of the country.
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Re: Fuel Cut problems st165

Postby unaffiliated » Mon Jun 30, 2014 6:04 pm

haha thank you, unfortunately it overheated last night and the radiator blew so this is now the least of my worries... I think I'm going to just keep it at a safe amount of boost once I get it fixed.
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