she is at it again

[amalventano1@comcast.net (Allyn)]

    brendain, sounds like you've nailed the problem. check your dpr current. its probably going to
20ma a few minutes after startup. 20ma is the rich stop, but if your dpr isnt doing anything, the
ecu will take it to 20ma. also keep in mind that you may have been at the high end of the adjustment
range. you may only have to dial it back in.
    on the other hand, if it goes to 0ma, your o2 sensor is probably toast. thats not a typical
failure mode though, since o2 sensors will usually make less voltage when they fail. yours would
have to make more voldate, making the ecu think its rich, making it lean it out to max.
Al

Allyn Malventano, ETC(SS), USN
87 Rieger GTO Scirocco 16v (daily driver, 180k, rocco #6)
86 Kamei Twin 16V Turbo Scirocco GTX ('it has begun', rocco #7)
86.5 Occo 16v Trailer (dotting 'i's across the country, rocco #8)
87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles, original clutch, driveshafts, wheels :)

----- Original Message -----
From: "breandan mcilwain" <irisheet@yahoo.com>
To: "scirocco list" <scirocco-l@scirocco.org>
Sent: Sunday, June 30, 2002 1:16 PM
Subject: she is at it again


> well she is at it again, yes thats right!!  i just got
> done putting in the new thermostat(80C) and low temp
> fan switch.  went out for a ride just to see how cool
> my new parts would make her run.  i was wrong!!!  she
> ran so stinking hot i was afraid to really run her.  i
> also observed something else, my air fuel mixture
> guage didnt have any kind of readings on it.  so i got
> home and checked all my wiring and it is fine.  took
> it back out for another ride and she was still running
> extremely to hot.  so i floored the dam thing and i
> finally got a reading this time on the guage(AF)and it
> was in the stoich range.  now i know what is
> happening, the car is running so lean that it is
> causing a run hot problem, because of poor air fuel
> mixture.  so i had either 2 things happening.
>
> 1. o2 sesor went bye bye
> 2. dpr is completely shot and it is time to replace
>
> if anyone has any ideas about what the hell this dam
> car is doing please dont be afraid to voice them.
>
> thanks
> breandan
>
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