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Location:
Brisbane
Registered:
May 2002
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Re: Wiring loom problems (3TGTE)
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Fri, 07 February 2003 01:07
 
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I've had similar problems with my 18R-GEU recently. After much wailing and gnashing of teeth it turned out to be a bad ground. Make sure the ECU is grounded with a good, solid connection to the body, and make sure the injector circuit is grounded to the inlet manifold using heavy gauge wire (pins E01 and E02).
A good way to check the injector circuit is to unplug the ECU and bridge pins #10 and #20 to E01 and E02 on the ECU plug. Then use a multimeter to check the resistance between the injector plugs and the inlet manifold; it should be zero. Finally, briefly switch on the power to the injector circuit (only for a fraction of a second) and listen for a click from the injectors, which should be quite audible. If that works, your injector circuit if fine and the problem exists with the ECU itself.
Finally, have you checked the fuel pressure? I bought an oil pressure gauge and hooked it up to the fuel rail (where the cold start injector is supposed to go), and this was invaluable when diagnosing problems with the EFI system. As long as you have fuel pressure and spark, you know the problem is electrical. BTW, the cold start injector is not needed - mine has been disconnected ever since I broke it a few years ago.
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| | Subject | Poster | Date |
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Wiring loom problems (3TGTE)
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inferno | Fri, 07 February 2003 00:43 |
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Re: Wiring loom problems (3TGTE)
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roger | Fri, 07 February 2003 01:00 |
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Re: Wiring loom problems (3TGTE)
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Norbie | Fri, 07 February 2003 01:07 |
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Re: Wiring loom problems (3TGTE)
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inferno | Sat, 08 February 2003 22:40 |
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Re: Wiring loom problems (3TGTE)
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CLG | Sun, 09 February 2003 04:13 |
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Re: Wiring loom problems (3TGTE)
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inferno | Sun, 09 February 2003 05:05 |
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Re: Wiring loom problems (3TGTE)
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CLG | Sun, 09 February 2003 09:56 |
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Re: Wiring loom problems (3TGTE)
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Grant | Sun, 09 February 2003 21:27 |
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Re: Wiring loom problems (3TGTE)
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inferno | Mon, 10 February 2003 22:32 |
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Re: Wiring loom problems (3TGTE)
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inferno | Tue, 11 February 2003 05:53 |
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Re: Wiring loom problems (3TGTE)
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roger | Wed, 12 February 2003 00:18 |
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Re: Wiring loom problems (3TGTE)
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inferno | Wed, 12 February 2003 00:37 |
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Re: Wiring loom problems (3TGTE)
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roger | Wed, 12 February 2003 01:08 |
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Re: Wiring loom problems (3TGTE)
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inferno | Tue, 18 February 2003 08:04 |
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Re: Wiring loom problems (3TGTE)
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clubagreenie | Tue, 18 February 2003 08:31 |
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Re: Wiring loom problems (3TGTE)
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inferno | Wed, 19 February 2003 13:42 |
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Re: Wiring loom problems (3TGTE)
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roger | Wed, 19 February 2003 22:05 |
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Re: Wiring loom problems (3TGTE)
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roger | Wed, 19 February 2003 22:12 |
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Re: Wiring loom problems (3TGTE)
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TurboRA28 | Wed, 19 February 2003 22:49 |
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Re: Wiring loom problems (3TGTE)
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inferno | Thu, 20 February 2003 00:18 |
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Re: Wiring loom problems (3TGTE)
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roger | Thu, 20 February 2003 02:39 |
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Re: Wiring loom problems (3TGTE)
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TurboRA28 | Thu, 20 February 2003 03:19 |
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Re: Wiring loom problems (3TGTE)
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roger | Thu, 20 February 2003 03:31 |
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Re: Wiring loom problems (3TGTE)
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inferno | Thu, 20 February 2003 04:13 |
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Re: Wiring loom problems (3TGTE)
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roger | Thu, 20 February 2003 04:51 |
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Re: Wiring loom problems (3TGTE)
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TurboRA28 | Thu, 20 February 2003 05:41 |
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Re: Wiring loom problems (3TGTE)
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inferno | Thu, 20 February 2003 08:09 |
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Re: Wiring loom problems (3TGTE)
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roger | Thu, 20 February 2003 21:33 |
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Re: Wiring loom problems (3TGTE)
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TurboRA28 | Thu, 20 February 2003 22:06 |
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Re: Wiring loom problems (3TGTE)
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inferno | Thu, 20 February 2003 23:11 |
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Re: Wiring loom problems (3TGTE)
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roger | Thu, 20 February 2003 23:35 |
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Re: Wiring loom problems (3TGTE)
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CLG | Fri, 21 February 2003 04:46 |
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Re: Wiring loom problems (3TGTE)
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inferno | Fri, 21 February 2003 14:02 |
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Re: Wiring loom problems (3TGTE)
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AE25 | Wed, 04 May 2005 09:22 |
