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In a message dated 2/28/06 11:58:02 PM Eastern Standard Time, jadney@vwtype3.org writes: << On 28 Feb 2006 at 10:54, Hal Sullivan wrote: > Do you have any other ECUs laying around you could plug in to test > with? I mean yeah. a '73 T3/AT ECU (for example) wouldn't be *right*, > but would help troubleshoot whether the fuel pump circuit in your ECU > is or isn't the problem. Good point. The fuel pump control circuits in any D-jet brains would be the same. >> Ok, I installed the t-3 "D" brain I have here, and now the pump runs, and I hear the front relay energize. I guess that means the T-3 ECU is good, and my T-4 wiring is good. : ) I guess this also means that the T-4 brain that I had installed is bad. I seem remember reading on STF in the FI forum, that if the D-jet brain gets wet, it can short out internally. This one might have had that happen to it sometime in it's life. Oh well, at least I didn't have too much money into the T-4 FI brain and wiring harness. :O Now I just need to get a 0 to 60 gauge so I can check the fuel pressure and set it if it needs to be set, and then check the bleed down of the fuel system. It's getting closer to running now. : ) Just have to wait on the new T-4 ECU, and then install it. Thanks for the help. Bob 65 Notch S w/ Sunroof and IRS 71 Square, now a 2 seat Roadster, pics can be seen at; http://volksrods.com/forums/index.php?showtopic=2977 and now has a 2.0L t-4 with D-jet FI engine transplant, just finishing up the details. : ) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~