Dadoulis Paschalis Posted April 4, 2008 Report Share Posted April 4, 2008 Hi to all! We have a little problem with two Yaris which are eqquiped with a LinkG2 ECU! You see as soon as we turn on the ignition key it produces a little bit of an "explosion" if we can call it this way in the inlet manifold and it breaks it down!! Does anyone have any idea on this? I remark it that they are racing cars Yaris, which are running in the greek championship!! Any ideas and explanations welcome!! Thanks! Paschalis Quote Link to comment Share on other sites More sharing options...
Simon Posted April 6, 2008 Report Share Posted April 6, 2008 This could be that the coils are powering up just a fraction before the ECU. This can be fixed by powering the coils from the fuel pump relay. Simon Quote Link to comment Share on other sites More sharing options...
Dadoulis Paschalis Posted April 8, 2008 Author Report Share Posted April 8, 2008 The wiring is the stock one!! so everyhting is set up correctly!! Fuel pump together with the coils!! One thing that we 've noticed about is that there is one spark when we saw inside a spark plug hole turning on the engine!! Something else that I can check? Thanks! Paschalis Quote Link to comment Share on other sites More sharing options...
ashesman Posted April 8, 2008 Report Share Posted April 8, 2008 If the coils power AFTER the ECU then there will be no problems. G3 ECU's are designed to take care of this situation but a G2 is a little different. The factory loom will not power the fuel pump and the coils together (well not that I have ever seen before). It may be necessary to switch the power feed for the coils to a relay that is switched on by an ECU auxiliary output (always on Test ON) or off the fuel pump auxiliary output. Quote Link to comment Share on other sites More sharing options...
Dadoulis Paschalis Posted April 8, 2008 Author Report Share Posted April 8, 2008 I'll check on this!! I'll wire the feed of the coil to the auxiliary of the fuel pump and I will let you know of the results!! Thanks a lot for now! Till later... Quote Link to comment Share on other sites More sharing options...
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