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Injector Flow conoensation Mode: None vs Sensed Fuel Rail Pressure
Posted: Fri Oct 25, 2024 1:22 am
by KiK
Hello all,
I am not sure if this the correct board to post this on but here it goes.
I have an adjustable fuel pressure regulator fitted in my rail, vaccum actuated. Which means, in theory, that I can run "None" on Compensation Mode.
On the other hand, as I have a fuel pressure sensor, I can also select Sensed Fuel Rail Pressure which, at least to me, sounds the way to go for a slightly more accurate fuel delivery.
This is on a boosted build.
Any thoughts?
Re: Injector Flow conoensation Mode: None vs Sensed Fuel Rail Pressure
Posted: Thu Oct 31, 2024 12:48 am
by KiK
No one able to chime in?
Re: Injector Flow conoensation Mode: None vs Sensed Fuel Rail Pressure
Posted: Mon Nov 18, 2024 1:16 am
by cody
I also have been wondering this. I have been running none tried sensed briefly and ran into stuttering issues at high rpm.
Then there's the pressure sensor type absolute or gauge that changes the base value for calculation.
Throws everything out if you have it set wrong.
Re: Injector Flow conoensation Mode: None vs Sensed Fuel Rail Pressure
Posted: Mon Nov 18, 2024 2:29 am
by mk e
I think everyone moved to discord. In general a vacuum correct regulator and fixed flow value works fine. The advantage of reading pressure and using the associated flow rated is failure or drift correction. I had a failing fuel pump and fuel pressure was down to 10 psi before it was clear I had an issue which is good but I did added fuel pressure to the warning light triggers. Also on a setup like mine with ITBs there's no good way to vacuum correct the regulator so a pressure sensor is helpful.
Re: Injector Flow conoensation Mode: None vs Sensed Fuel Rail Pressure
Posted: Fri Dec 13, 2024 2:32 pm
by stwillocks
mk e wrote: ↑Mon Nov 18, 2024 2:29 am
I think everyone moved to discord. In general a vacuum correct regulator and fixed flow value works fine. The advantage of reading pressure and using the associated flow rated is failure or drift correction. I had a failing fuel pump and fuel pressure was down to 10 psi before it was clear I had an issue which is good but I did added fuel pressure to the warning light triggers. Also on a setup like mine with ITBs there's no good way to vacuum correct the regulator so a pressure sensor is helpful.
plus if there any leak on the regulator vacuum/pressure line, sensed fuel rail pressure option will be another failsafe mode for lean mixture. Please do not ask how I know