Tweaking adjustable fuel pressure regulator

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02-06-2013, 10:56 PM

#11

black04

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Your afr is rich because the higher fuel pressure makes the injectors flow more. The tune needs to be dialed in with the right fuel pressure.

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02-06-2013, 11:13 PM

#12

MikeGyver

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I would think it is something else, since it was probably Nelson that told him to set the pressure at 58 psi.

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02-06-2013, 11:15 PM

#13

oakley6575

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Quote:

Originally Posted by MikeGyver

I would think it is something else, since it was probably Nelson that told him to set the pressure at 58 psi.

It was tuned before the regulator was hooked up to a vacuum source. The tune needs to be tweaked

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02-06-2013, 11:44 PM

#14

MikeGyver

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I reread the first post, I understand now.

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02-07-2013, 09:36 AM

#15

brandon6.0

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yeah i think its the tune. but would backing the WOT pressure down work? Nelson acts wierd these days about retunes. Kinda fustrating.

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02-07-2013, 07:42 PM

#16

oakley6575

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Just do it right the first time and contact Nelson. Adjusting base pressure to achieve a wideband reading isn't a good way to go about it.

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02-08-2013, 02:32 PM

#17

brandon6.0

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Yeah i will contact them today.

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