Engine Idle vac, and hesitation

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Oct 16, 2001 | 03:40 PM

revhrdls

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Junior Member

Joined: Dec 2000

Posts: 623

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From: las vegas, nv, usa

Engine Idle vac, and hesitation

What's normal idle vac? ever since I installed my fuel pump it is in the 400-600s

when I push on the gas normal it hesitates kinda like tine bogging on engine why?

Oct 16, 2001 | 06:31 PM

BLKMamba

BMW Güdentyte

Joined: Feb 2001

Posts: 1,722

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From: 110 degrees heat wave, US

Re: Engine Idle vac, and hesitation (revhrdls)

On a cool warm day, my vac at idle is about 510mmHg and on a very hot day, it goes to 550mmHg.

Oct 16, 2001 | 07:34 PM

Incognito

Honda-Tech Member

Joined: Jul 2001

Posts: 925

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From: Dirty Jersey, USA

Re: Engine Idle vac, and hesitation (revhrdls)

Play with your fuel pressure. Might have to back it down a little (for idle)

Oct 16, 2001 | 07:48 PM

revhrdls

Thread Starter

Junior Member

Joined: Dec 2000

Posts: 623

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From: las vegas, nv, usa

Re: Engine Idle vac, and hesitation (Incognito)

actually I don't have a regulator except for the FMU which is supposed to regulate right?

Oct 16, 2001 | 07:51 PM

TurboInteg95

Honda-Tech Member

Joined: Oct 2000

Posts: 1,584

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From: San Diego, CA, USA

Re: Engine Idle vac, and hesitation (revhrdls)

around 500 is about normal for a healthy engine. It will go down with the A/C on a bit

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