[Supras] Very rich start with code

[Vladimir Ponomarev]

Guys, thank you. I'll check the O2 sensor and CSI. Must be something simple.
 
Vlad.

  _____  

From: Rockey Fox [mailto:supr91tt at yahoo.com] 
Sent: Friday, October 19, 2007 8:39 AM
To: Sean Cavanaugh; Vladimir Ponomarev; supras at supras.com
Subject: Very rich start with code


Mine started right up this morning after sitting for a couple of days but I
admit it usually takes a couple of attempts. 
I've noticed lately that it starts really rich as in lots of black smoke and
the check engine comes on for about 3 minutes then goes off again. The code
when I checked was related to the O2 sensor. 
Is it more likely that the O2 sensor is nearing the end of its useful life
or an overly rich or stuck open start injector? I'm getting ready to install
the MAFT in speed density mode and would like to belive I have everything in
order before making that change in setup.

Thanks,
Rockey 91T


----- Original Message ----
From: Sean Cavanaugh <Millenia2000 at hotmail.com>
To: Vladimir Ponomarev <vladiborev at yahoo.com>; supras at supras.com
Sent: Thursday, October 18, 2007 6:49:08 PM
Subject: Re: [Supras] Fuel pressure.

far as I know, that's normal. after car is off, fuel flows backwards thru 
the pump into the tank. first few seconds of cranking reprimes the line with

fuel and you're good to go. I have never heard of a MKIII with a stock pump 
that starts right up without a little lag.

-Sean

----- Original Message -----
From: "Vladimir Ponomarev" <vladiborev at yahoo.com>
To: <supras at supras.com>
Sent: Thursday, October 18, 2007 6:07 PM
Subject: [Supras] Fuel pressure.

>
> Hi guys. I have noticed a fuel pressure drop after my 91T with 170 kmiles
> sits overnight in the garage or even after few hours after stop. It takes
> time to build fuel pressure again and to crank her. Question: what is the
> most likely cause of the pressure drop? I have switched to AFPR, but it
> didn't help. What is my next bet?
> Thanks.
>
> Vlad.
> _______________________________________________
> Supras mailing list
> Supras at supras.com
> http://supras.com/mailman/listinfo/supras_supras.com
> 

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