Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Hesitation, cutting out at high rpm, cannot solve it

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Old 12-19-2022 | 07:30 AM
  #21  
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Originally Posted by Zrillian
Installed new maf, fuel pressure regulator, both evap canisters, and then a k&n fuel filter. Same issue but mine is 4500 @wot. Perfect pressure at the rail and pump will dead head almost 115psi at the pump before filter. Could we both have a restricted fuel filter?
I solved my issue with the BR7 plugs. My fuel filter probably wasn’t big enough, but I don’t think that was my problem here. Now for your issue, you definitely need a different fuel filter. That’s an insane amount of pressure just to get 50-60 at the rail.
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Zrillian (12-19-2022)
Old 12-19-2022 | 07:51 AM
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That will be the next thing I check. After that if fuel pressure doesn't change or issue doesn't stop I'm going to have to run a logger and find a tuner




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