Fuel tank pressure 200 20V / vapor lock!

Huw Powell audi at humanspeakers.com
Sun May 20 10:00:30 PDT 2018


"So, need VAG part number for two pin afterrun sensor on the coolant 
manifold"

Test it before replacing...

If you want to remove it, boiling water, ice water, and a simple meter 
are your friends here.

Also, pull up the circuit in your Bentley and look at where else it 
might be failing. Test there, too.

- Huw

On 5/20/2018 11:53 AM, Eric Huppert wrote:
> Car has been running and starting fine. Only using locally (until next
> weekend!) and no problems.
> 
>   
> 
> Been working on another long term vehicle project and finally getting back
> to this one.
> 
>   
> 
> Facts: Car wouldn't start immediately after a "hot soak". Using non ethanol
> high test.  Motor was on the hot high side, but gauge has never been
> accurate!
> 
>   
> 
> After considerable thought, I've never heard the after-run fan come on! If
> it was going to it certainly should have on that day! So, having a little
> difficulty finding a valid part number...Help!
> 
>   
> 
> Additional fact: When I was stop and go in the city the jet-roar fan was
> engaging, but never the second speed. While leaving the city I had put the
> cc on bi-level which did operate the first speed coolant fan which helped to
> cool things down.. Need to investigate that also. That's possibly the
> resistor pack, relay, sensor or the likes!
> 
>   
> 
> So, need VAG part number for two pin afterrun sensor on the coolant manifold
> 
> 
>   
> 
> Eric
> 
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