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As Jim pointed out...I goofed that one...still dont know why I was thinking that...however...What I did, when I was going through similar invesigations, was to remove the injectors from the manifold....still connected to everything else though...turn the key to "on" and open the throttle slowly, from the engine compartment with your hand. With the key "on" the extra squirts delivered as an accelerator pump will happen. Which two injectors will depend on which FI trigger points are closed. You will be able to see that the correct pair are firing, and what the spray patter looks like. Then you can rotate the engine by hand to get the other pair to fire. If you dont get anything to fire, you can check the continuity on the 3 prong plug on the dizzy...one is ground the other two are the "hot" for the injectors. One goes to one pair of injectors, one goes to the other pair. Drake Lawson 72 Square "Ginger" Stock 63 Bug "Christine" Darkside" ----- Original Message ----- From: "Chris J Valade" <redyouth@juno.com> To: <type3@vwtype3.org> Sent: Sunday, August 10, 2003 3:17 PM Subject: Re: [T3] Severe engine problems...? > Because of Drake pointing out that there actually is something > which unites cylinders #2 and 4 I finally checked the injectors while > trying to start the car--neither 2 or 4 sprayed. > > I got the trigger contacts out and I have some concerns, but > first, how do I test them? Is it terminal 21 on the trigger contacts > that connects to injectors #2 and 4? Does the following sound like it > could be causing my problem: the contact on 21 is a dark red while 22 is > dark blue; the center round part which would touch the distributor shaft, > and the little point that makes and breaks contact, is worn down for 21, > at least in comparison with 22. > > I've got VW# 311 905 205 AB and Bosch# 0 231 163 008; what Bosch# > is best to replace this with? > > As regards the resistance measurements, I'll try to explain more > clearly what I was testing--I apologize but I'm not familiar with many of > the names. I pulled the wire off of the SP and with the brown piece > still on (is this the SP connector?) I would test from there to either > the part that plugs into the dist cap, or to the copper prongs inside the > dist cap. Also, those copper prongs are semicircles and then get > wider--after a 90 degree change on the flat part of the semicircle--and > become full cylinders. I hope that helps=) > > Sincerely, > Christopher J. Valade > > 1970 Squareback (AT, FI, w/1972 originally dual carb engine) -- Rosie > > ________________________________________________________________ > The best thing to hit the internet in years - Juno SpeedBand! > Surf the web up to FIVE TIMES FASTER! > Only $14.95/ month - visit www.juno.com to sign up today! > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org >