[Fwd: Re: [Fwd: Re: 4kq intermittant rough/bouncing idle] 5KQ also.]

[John Sherrow]

Not trying to argue but trying to understand. Wouldn't leak down
de-pressurize the fuel lines causing long cranks on cold start with or
without the CSV activated?

-------- Original Message --------
From: Ti Kan <ti at amb.org>
Subject: Re: [Fwd: Re: 4kq intermittant rough/bouncing idle] 5KQ also.
To: sherrow at westol.com (John Sherrow)
CC: quattro at audifans.com (quattro list)

John Sherrow writes:
> [ CIS warm start problem ]
> If it was leak down wouldn't cold start be a problem? I just started the
> car after a week long trip and it fired up instantly. Idled around 1200
> for 30 seconds then dropped to a solid 800 rpm.

Cold starts are not adversely affected by injector leakdown because
there is start assist by the cold start valve as well as enriched
mixture
by the ECU via temp sensor input.

-Ti
2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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