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swapping ECU's 200

posted by  Aye Roll on  Wed Feb 25 11:50 CST 2004
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last visit: Tue Oct 14 21:08 CST 2014
[RELATED]

Note that a Bosch Rebuilt 561 is OK- they fixed whatever it was that was burning up in them. Should have a sticker saying REBUILT or REMAN.
Nearly every one *I've* seen has caused the car to not run, as the main fuel pump is not provided with a ground path. The circuit (transistor?) to turn on the fuel pump ground is what burns up. I've seen a few wiring harnesses in 89-90 cars doctored up to provide this ground at all times- that makes the fuel pump run even though the engine is not turning. That's OK if and only if you KNOW about it and treat it correctly- ie. do NOT leave the car ON but not running, ever. You can flood it, if you've got a leaky injector.
Wish there was a good fix- but I had not heard that the 951 didn't work with a 5-speed. I know there have been reported slightly different torque numbers with a manual vs. auto, but I wasn't aware that the computer actually was incompatible.

Good luck with yours.
--
Rob Bareiss, New London CT ::: '87 244DL/M47- 225K, 88 744GLE- 209K, 91 244 183K. Also responsible for the care and feeding of: 88 745GLE, 229K, 88 244GL, 146K, 87 244DL, 235K, 88 245DL, 236K






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