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Registered User
Join Date: Sep 2011
Posts: 14
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Need some serious help
Ive been working on my 944 for the last week or so trying to get it to run. I have tried everything and I just put a new computer in it.... nothing!
dme is good Fuel pump is good, pushing 40lbs fuel filter is good DME relay is functioning, DME is getting juice replaced the reference sensor (should I replace the speed sensor too?) new spark plugs new ignition coil cap and rotor is perfect condition I have no spark whatsoever. I can smell a little fuel when its cranking but it is a slight smell, so I doubt the injectors are pulsing either. Any ideas? The wiring harness seems to be OK on a visual inspection. |
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10-11-2011, 02:18 PM
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Proprietoristicly Refined
Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
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OK,
You replaced the reference sensor. DO you have the tach bounce 1/16" when you grind the starter? Clean the AFM connection. (Copied from a new/recent post) Does the AFM swing door move freely with no binding? Did you check the resistance of BOTH sensors-old and new? Speed and Reference Sensors - Checking, Replacement, and Adjustment The pins on the flywheel, are they clean and not coated with oil? Are they damaged? Pull the FW inspection plate under the car to check. (Front of the bell housing-bottom. 2 bolts) Wiggle the big bundle of wires to the DME. It may have a bad connection to your new computer. Check the wires to the DME: http://forums.pelicanparts.com/5676317-post5.html GL John (Everything I just suggested sounds very familiar, like I just did it a couple of minutes ago)
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1988 924S, 85,750K ..+ 1987 924S, 154K DD (+15K est. bad odo) |
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10-11-2011, 04:57 PM
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Registered User
Join Date: Sep 2011
Posts: 14
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Figured out the problem, got messing with the wiring harness coming off the speed and reference sensors and found a few broken wires. Patched them together and she purrs like a kitten.
I was on my last leg here, I had already checked everything you had mentioned EXCEPT the wiring on the engine side of the sensors. Crazy how that works :P Thanks for the help!
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----------------------------------------------------- My cars : 1984 Porsche 944 1985 Nissan Pickup SBC swap 2005 Chevy cobalt |
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10-11-2011, 05:07 PM
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Proprietoristicly Refined
Join Date: Jul 2001
Location: ~Carefree Highway~
Posts: 5,833
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Great news!
John
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1988 924S, 85,750K ..+ 1987 924S, 154K DD (+15K est. bad odo) |
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10-11-2011, 05:15 PM
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