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On 6 May 2002, at 9:40, jason.smith@sarcom.com wrote: > The problem was that it was just bogging down when you press on the gas, no > power at all. Also this just happened one day. I drove it the day before and > it was fine ran great, then I took it out and it just would not go, just > bogging down. So I checked all the ignition parts and found the timing to be > off. First of all it would help us a lot if you would put some paragraphs in your posts. It makes them much easier to read and understand. ;-) Note: The timing for a 72 is UNIQUE. The only manual that explains how to do it correctly is the Bentley. It also explains several things in that system that you should check. Did you do any of this? > Once I got to the mechanic he adjusted all the ignition parts to spec and > found only 7lbs of fuel pressure. He replaced the regulator and was able to > adjust the pressure to 28psi, he also stated that he removed some 'junk' from > the fuel lines. He also found that the injectors were firing erratically, > but had a good spray when working. If there was junk in the lines this could have lodged in the pressure regulator and kept it from working. This might also clog up your injectors. You symptoms sound like simply low gas press pressure, but clogged injectors could do the same thing. Pulling out the injectors and watching the spray pattern is a useful test of whether they are clogged or not. The big question is where did the "junk" come from? You MAY also need to tighten up the electrical connections to the injectors. To do this you have to CAREFULLY take the connectors apart and GENTLY tighten them up just a TINY bit. If you're not careful you will ruin them and have a much bigger job ahead of you. > But the car still runs the same. He thought it might be the ECU so he swapt > out mine for a know good one and it changed nothing ( I did not think it > would). I checked inside the tank and found no significant sediment or > rust, filler neck seems in pretty good condition. I agree that the ECU was a long shot, but now you know. Of course that test is only valid if it was done with the right ECU, which is another long shot. It's not the filler neck that is the problem. It's a small, 3/4" diameter hose just to the rear of the filler neck. Inspect it carefully for cracks. If it is cracked it will also leak gas down the inside fender wall when you top up the tank. Gas leakin OUT of the tank is only the tip of the problem iceberg; water/dirt getting IN is the big problem. > Another thing, the last time it was in the shop was because I did not install > the dist right and they had to reset the drive gear, could they have set it > wrong and this is why it won't idle or time correctly? Probably not. You probably just didn't get the drive dog engaged in the drive gear properly. This is a rather common beginner's mistake, and one that they would be unlikely to do. > I have some new trigger points that I may install just cause I have them > (I'll need advice on removing and installing the dist too since I botched it > last time). I was also thinking of replacing all the fuel lines and checking > every electrical connection. It's probably not the trigger points. Checking connections is always a good thing to do. Do you have a Bentley manual? If not, that would be another good thing to do. > Thanks, Jason Smith '72 Fastback FI AT Note again that the 72 timing proceedure, with the vacuum advance AND retard is UNIQUE. - Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/