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Subject: Re: [T3] 68 Emissions Nightmare > On 6 Mar 2001, at 20:24, Marshall wrote: > > > The fuel pressure was up to 50 lbs and he brought it down to 26 lbs which > > is slightly under the specs. > > This was a HUGE change. How could it NOT have made a difference? Is > it possible that your oil is heavily diluted with excess gas which is > now contributing to the CO measurement. I would adjust the pressure > to the correct 29 psi. > First thing I would do after having 50psi pressure, is to Change the oil, and take the car out and work it up completely before taking another emission check. > > Can anyone offer some advice as to fixing this problem? We are at our > > wit's end over this. He was suggesting perhaps the previous > > owners put the wrong injectors in. He was asking if I knew the > > Millisecond ontime of the injectors. I told him I would try to get that > > info from the list (and any advice offered). > If I remember right, it is around 40-45ms on time depending on the temperature of the engine. > I have one measurement of the injector on time made years ago. I can > dig it up if you really think it will help, but I have my doubts. > Still I'm impressed that your mechanic thought to consider this and > also that he thinks he has the equipment to measure it. > > There were 2 possible injectors for your 68, Bosch numbers ending in > 001 (black plastic bodys) or 007 (yellow plastic bodies.) They should > all be alike. > > I would make sure that all the other stuff is right first: timing, > dwell, advance mechanisms, valve lash, idle speed. Then check > compression and make sure that all the hoses are installed on both > ends for the pressure sensor and the pressure switch. > > - AMEN Russ Wolfe russw@classicvw.org http://www.classicvw.org/ ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org