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C6

Abbreviation for the 6th generation of Corvettes built starting in 2005 and are still in production....

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Re: Acceleration trouble

Subject: Re: Acceleration trouble
by Schrade on 2008/9/15 23:48:31

Quote:

jimmers wrote:
I checked for codes lastnight, but there wasn't any!

Then let's go back to fuel pressure...
Quote:

Blade_1 wrote:
Yup - fuel pressure.

Check it static (motor off), idle with vacuum on FPR, idle with vacuum off FPR, and pedal down (gauge taped to the windshield).

This last one you really need to do, to make sure of enrichment for acceleration...

It doesn't matter if you have a new pump or not. If the regulator does not respond properly to increase vacuum, or if the vacuum is leaking somewhere, you won't accelerate.
Resized Image

You have a problem accelerating?
Check fuel pressure for increase pressure under pedal down conditions. Vacuum from pedal down must be correct to enrich fuel pressure for acceleration.

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