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Old 05-20-2022, 10:36 AM #16
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Thank you for the post!
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Old 05-20-2022, 06:27 PM #17
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They also make a banjo bolt replacement with an 1/8” NTP thread in the head also. Which measures the fuel rail pressure after the regulator.


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Old 12-14-2023, 05:54 PM #18
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What's the difference in measuring fuel pressure before or after the regulator?

I thought before the regulator would be constant and after the regulator would fluctuate with rpm/load
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Old 12-15-2023, 06:18 PM #19
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Quote:
Originally Posted by DJRodriguez88 View Post
What's the difference in measuring fuel pressure before or after the regulator?

I thought before the regulator would be constant and after the regulator would fluctuate with rpm/load
Regulator is vacuum dependent and therefore load dependent so before the regulator it should be fairly stable, but increase with engine load (and as engine vacuum decreases). I'm not sure if there's even a spec for post regulator measurements as that fuel is returned to the fuel tank.
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Old 04-03-2024, 07:46 PM #20
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Quote:
Originally Posted by DJRodriguez88 View Post
What's the difference in measuring fuel pressure before or after the regulator?

I thought before the regulator would be constant and after the regulator would fluctuate with rpm/load
I'm not completely sure about your question..I was just putting this out there because their hadn't been any alternatives to checking fuel pressure besides the specialized union bolt for the fuel rail. I ended up dropping the tank and putting in a new fuel pump and it solved my issue with the lack of fuel. It read constant during idle and under very slow throttle input but as soon as I gave it anymore it would drop to like 10-15 psi.
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Old 04-04-2024, 10:57 PM #21
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Quote:
Originally Posted by Js'00imited4runner View Post
I was just putting this out there because their hadn't been any alternatives to checking fuel pressure besides the specialized union bolt for the fuel rail.
I ended up doing your mod. Works great thanks! 👍
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