Try checking the wiring to the ECU connector, sometimes the actual connector that plug at the ECU get corroded, dirty, making a false contact.
good luck Francesco. ---------------------------------------------------------- DIFUNDE NUESTRA PAGINA WEB http://www.geocities.com/fontaracing ----- Original Message ----- From: "Anthony Pelletier" <[email protected]> To: "Patrick Austin" <[email protected]>; <[email protected]>; <[email protected]> Sent: Wednesday, August 22, 2001 7:03 AM Subject: Re: Running problems again: Still running badly. > It still could be something with the 02 wireing. The > 02 is the sensor and the dpr is the actor. BTW what > is the air mass sensor? Is that on the other side of > the fuel dist that measures the air flow plate? > > > > --- Patrick Austin <[email protected]> wrote: > > Okay... > > > > a) DPR plugged in, O2 sensor disconnected: Car > > hesitates badly, won't drive. > > b) DPR pluged in, O2 sensor connected, Air Mass > > Sensor disconnected: Car > > hesitates badly, won't drive. > > c) DPR unplugged, O2 sensor plugged in, Air Mass > > sensor plugged in: Car > > doesn't hesitate, pulls to redline. > > > > So, if the O2 sensor were the culprit, I'd expect > > the car to run OK in > > scenario a). Were it the air sensor, I'd expect it > > to run OK in scenario > > b). As it is, it only runs OK in scenario c). Were > > the transfer pump bad, > > I'd expect the car to run just as badly with and > > without the DPR plugged > > in. WTF??? Could it be the TT chip I installed a > > couple of days ago? It > > ran fine just after I installed it, but maybe it's > > 'learning' a bad habit. > > The air intake boot seems fine, as do the major > > vacuum lines. > > > > At 04:34 PM 8/19/01 EDT, [email protected] wrote: > > >In a message dated 8/18/01 9:19:01 PM US Eastern > > Standard Time, > > [email protected] > > >writes: > > > > > > > > > If the > > > What > > >exactly does the DPR do, and why does it run fine > > without it hooked up? > > > > > > > > >The DPR is controlled by the o2 sensor, and it > > riches/leans the mixture > > based > > > Plug the DPR back in, and disconnect the o2 > > > Let us know what happens. > > > > > >-Dave > > >'91 Jetta GTX 16V > > >'88 Jetta GLI 16V > > >'84 Vanagon > > ************** > > Patrick Austin > > [email protected] > > (617)782-9115 > > ************** > > _____________ > > List Sponsor: http://www.netsville.com > > To remove yourself from this list, send mail to > > [email protected] with 'unsubscribe a2_16v' in > > the body of your message > > See us on the web at http://www.a2-16v.com > > Visit the 16V Homepage at http://www.gti16v.org > > > __________________________________________________ > Do You Yahoo!? > Make international calls for as low as $.04/minute with Yahoo! Messenger > http://phonecard.yahoo.com/ _____________ List Sponsor: http://www.netsville.com To remove yourself from this list, send mail to [email protected] with 'unsubscribe a2_16v' in the body of your message See us on the web at http://www.a2-16v.com Visit the 16V Homepage at http://www.gti16v.org
