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Old 02-20-2012, 06:39 PM
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Join Date: Feb 2012
Posts: 1
Fuel Injection

I have a 2000 Mercedez ml 320. When I first start the car it runs fine, then within less than a minute I lose pulse to all 3 fuel injectors on the drivers side of the motor. I have replaced the ecu twice with re-manufactured re-programed computers and I get the same thing. When I first scanned the car I got a bad ecu and bad quad driver code (Which I believe runs the fuel injection) so, my question is, what else can cause the fuel injectors on one side of the engine to fail? Does the cam sensor send signal to the ecu to run the injectors? If not, what does? ............ I've already tried moving coils around and the same 3 injectors still fail. I don't know where to go from here. Any help would be great. Thanks.
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Old 02-21-2012, 12:22 AM
Senior Member
Join Date: Nov 2002
Posts: 684
the car shut injectors off when it sees misfires to protect the cat. convertor. could be bad plugs, wires, clogged cat conv, mass meter, too. needs to be correctly diagnosed. not an easy poblem to solve with 1 part. good luck, chuck.
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