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Re: [T3] engine running rich

<x-charset iso-8859-1>First off..."Grinding out" a head usually refers to fly cutting and if he
did your compression ratio on that side is probably way too high and the
imbalance will also cause problems with longevity.

Its not however why its running too rich.

Its not a computer its a control unit and its not the problem eather, as
Jims probably already chimed in check your charging system voltage, make
sure you have a Bosch regulator and that you have 14V off idle.  If eather
temp sensor is bad it could cause this, more affected by the head temp
sensor but make sure the wire to the starter isnt on the wrong terminal,
that the cold start injector plug and the air temp sensor plug arent
switched (check wire numbers) and lastly that the fuel pressure regulator
isnt sticking.


----- Original Message -----
From: Ben Wampler <webmaster@erupt.com>
To: <type3@vwtype3.org>
Sent: Monday, November 19, 2001 10:34 PM
Subject: [T3] engine running rich

> Hello,
> I have a 71 fastback with a stock fuel-injected engine. It has a problem
> where it will run fine when first started up, but when it warms up, it
> seems to run too rich; gas smell from exhaust, poor mileage &
> and it's hard to restart (have to hold the pedal to the floor when warm;
> though cold start is easy)
> I took it to my mechanic, he set the timing, adjusted points, replaced
> plugs, ground out one of the heads (he said a valve was "popping"?), and
> set valves.  It runs much better overall since I got it back, but still
> same symptoms. He says my computer or my cold start valve is probably bad.
> Does anybody have any ideas on what may be wrong, how I can fix or
> unhook my cold start valve, or what else may need to be looked at?
> Help would be appreciated.
> -Ben
> -------------------------------------------------------------------
> Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe


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