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Registered
Join Date: Jan 2007
Location: North Side Chicago
Posts: 77
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No start 86 951-- injectors not firing
I just completed an intake refresh/venturi delete on my 951.
I have excellent fuel pressure, 3 bar, tested with old DME relay, new DME relay and jumper. I have spark, tested with timing light. The injectors are not spraying any fuel. They were cleaned/flowed by withhunter. All the injectors pass click test with a 9V battery. I can even put in the jumper, and get each injector to spray fuel into a bottle by hitting it with the 9v battery. I verified my injector harness is not broken/cracked with DME pin 14/15 and KLR pin 6. My S&R sensors both work, I replaced one that had a messed up connector with the matching one from the 924S in the process of troubleshooting the no start. I hooked up my multimeter to one of the injector clips, when I turn the key to "ON" I get 2V. When I crank the car I still get 2V at the clip, no change. I pulled the DME and opened it up, nothing looks burned, scorched or funny.... I dont know what else could be wrong....
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2000 Audi A6 4.2 - Current DD 1991 944 S2 - sold 1986 951 - departed 1988 924S - departed 1980 928S - sold |
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10-07-2007, 06:02 PM
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Registered
Join Date: Sep 2002
Location: Peachtree City, GA
Posts: 176
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Do you have a noid light? This will tell you if the DME is supplying the pulse to the injectors. I re-read what you wrote. the 2 volt reading, is that the voltage between the two leads to the injector or reading to a ground point?
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Mark '83 Porsche 944 NA '90 Porsche 944 S2 |
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10-07-2007, 06:40 PM
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Registered
Join Date: Jan 2007
Location: North Side Chicago
Posts: 77
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I do not have a noid light. Is that something that I can pick up at a Pep Boys??
The 2v I measured is between the two leads to the injector
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2000 Audi A6 4.2 - Current DD 1991 944 S2 - sold 1986 951 - departed 1988 924S - departed 1980 928S - sold |
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10-07-2007, 06:50 PM
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