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hot wire ECU?
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Posted by Michael [Email] (#1365) [Profile/Gallery] (more from Michael) on Thu, 8 Jan 2004 23:11:35 Share Post by Email
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So I've been reading up on all the ECU stories here and have come away with the idea that I'm not alone. This is my 4th C900 and 2nd 89 Tubro conv't. Just gotta love'm. But this one I was convinced is/was a lemon because of the ECU problem. Out of the four, this is the only ECU problem I've encountered and it will be the third replacement in the last couple of years.
A couple of questions:
1 - You guys in the ECU know mentioned different year ECU's will work for my 89T automatic, (yeah I know, my wife drives it). Can you tell me which ECU models work for this model?
2 - Why can't I just run the unit, and thus the car, with the relay shorted to ground, supplying voltage to the fuel pump without the ECU in the loop, ( I believe it's the purple wire?). I know, I know, i know it's a dirty connection but I need to get this puppy up and runnin.
3- What is the problem here? What keeps pulling too much current, (I'm speculating here) thru the unit as to pop the grounding x-sister? What other parts do I need to replace that are the cause of ECU meldowns?

BTW- I cannot tell a lie, yes it was a Bosh unit.
And who's got one anyway I need one ASAP.

THX for a great info tool.
Aloha

MS

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