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Re: [T3] engine running rich


On 19 Nov 2001, at 22:34, Ben Wampler wrote:

> 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 & acceleration, and
> it's hard to restart (have to hold the pedal to the floor when warm; though cold
> start is easy)

When you get in the car and just turn the key ON, do you hear a relay click 
and then click again about 1 second later? If not, there are some wires on 
your starter which are misconnected.

Look at your engine. Under the RHS of the intake air distributor is the CSV 
with a wire coming from the FI wiring harness and a second wire leaving and 
coming down to the temp switch. Is all this in place, nothing shorted to 
ground?

How's your gas mileage?

Measure your system voltage at medium RPM after a drive to warm 
everything up. It should be 14.1-14.4V. If it is less than 13.5V replace the 
voltage regulator with a genuine Bosch. If the voltage is low it will make the 
FI run rich.

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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