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Top 2GNT Technical Performance/Engine Engine Management Systems & Controllers topic #5716
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Subject: "RE: ECU is mad, refuses to do its reduced functions" Previous topic | Next topic
ModeratorbullettdsmJun-20-13 05:21 PM
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#5746, "RE: ECU is mad, refuses to do its reduced functions"
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Originally posted by Tired2
As in the ignition 12v power to the ECU? I don't recall the pin number, but I spliced to a cable that went to the ECU... I recall it being like a 10 or 12ga when the others were a bit smaller. I tapped into it and I use that to run my main 12v relay coil.

Yeah, you should have piggybacked into a wire that is powered when the key is turned on (I use a black and white wire that is in position B20 off the ECU plug). Sounds like that is what you have done. Can't seem to figure out what you could have done to cut the alternator power. You don't really touch the alternator wires at all. If you piggybacked the ignition wire, then the ECU knows when the ignition is on.

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

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ECU is mad, refuses to do its reduced functions [View all] , Tired2, May-20-13 10:29 AM
  RE: ECU is mad, refuses to do its reduced functions, Gruff511, May-20-13 10:11 PM, #1
RE: ECU is mad, refuses to do its reduced functions, Tired2, May-21-13 08:39 AM, #2
      RE: ECU is mad, refuses to do its reduced functions, Moderatorbullettdsm, Jun-19-13 01:53 PM, #3
           RE: ECU is mad, refuses to do its reduced functions, Tired2, Jun-19-13 08:02 PM, #4
                RE: ECU is mad, refuses to do its reduced functions, Moderatorbullettdsm, Jun-20-13 03:20 AM, #5
                     RE: ECU is mad, refuses to do its reduced functions, Tired2, Jun-20-13 08:17 AM, #6
                          RE: ECU is mad, refuses to do its reduced functions, Moderatorbullettdsm, Jun-20-13 05:21 PM #7
                               RE: ECU is mad, refuses to do its reduced functions, Tired2, Jun-21-13 06:20 AM, #8
                                    RE: ECU is mad, refuses to do its reduced functions, Tired2, Aug-24-13 09:57 PM, #9
                                         RE: ECU is mad, refuses to do its reduced functions, Tired2, Aug-27-13 01:53 PM, #10
                                              RE: ECU is mad, refuses to do its reduced functions, Gruff511, Aug-28-13 07:25 AM, #11
                                                   RE: ECU is mad, refuses to do its reduced functions, Tired2, Aug-28-13 08:32 AM, #12
                                                        RE: ECU is mad, refuses to do its reduced functions, Tired2, Nov-15-13 04:04 PM, #13

Top 2GNT Technical Performance/Engine Engine Management Systems & Controllers topic #5716 Previous topic | Next topic
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