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Registered User
Join Date: Jan 2015
Posts: 16
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83 Porsche 944 starting problem -starts after a few tries
Hi! Im very new to porsches so forgive me if I make mistakes.
I recently got an 83 944. I had it taken to a personal mechanic and painter who got the car running and resprayed. The car was starting and running fine until I took it for its first test run. When i got back from the test run it would take 4 or 5 tries (sometimes way more) to get it going. It will only start when the tacho bounces. I have changed the ref and speed sensors but it made absolutely no difference. Does anybody know what to do/ had experience with this problem? The car runs fine after it starts and im really loving it! Just embarrassing whe n it takes 5 mins to start in a crowded area. Thanks for any help! |
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01-20-2015, 07:23 PM
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plays with toy cars
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Maybe the wiring to the speed/ref sensors?
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1983 944 - modded everything http://forums.pelicanparts.com/dto_garage.php?do=viewvehicle&vehicle_id=28317 '86 951 - under construction http://forums.pelicanparts.com/dto_garage.php?do=viewvehicle&vehicle_id=28374 |
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01-20-2015, 08:28 PM
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Join Date: Jan 2015
Posts: 16
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So now the car just wont start at all. Had to be towed home. It may be the connection to the sensors.
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01-21-2015, 02:01 AM
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Registered
Join Date: Apr 2002
Location: motown
Posts: 289
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How about the DME relay (it should be listed as the fuel pump realy or relay #2 if I remember correctly)
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-John '94 968 Iris Blue '85.5 944 White - Rally Cross and wrenching practice '84 944 Gemini Grey (gone, but missed...) |
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01-21-2015, 05:21 AM
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Registered User
Join Date: Jan 2015
Posts: 16
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I thought it may be the DME relay, but the fuel pump seems to be running fine. I have installed a inspection filter before the fuel pump and i can see the fuel filling up as well as hear the fuel pump move. Before this my current problem I had huge fuel pump issues.
Could it maybe be an immobilizer? the car seems to have a really terribly installed old immobilizer that doesnt work, but maybe it is? I have no clue. |
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01-21-2015, 01:04 PM
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Registered
Join Date: Jun 2014
Location: Lake County, FL
Posts: 820
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If there is no tach bounce then it's the sensors. An immobilizer isn't going to allow the car to crank at all.
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01-21-2015, 02:03 PM
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Registered User
Join Date: Jan 2015
Posts: 16
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That is true. was just a thought.
I have again replaced the sensors. Still no luck, just cranks over perfectly. |
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01-21-2015, 02:26 PM
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Registered
Join Date: Jun 2014
Location: Lake County, FL
Posts: 820
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Quote:
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01-21-2015, 03:30 PM
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Registered User
Join Date: Jan 2015
Posts: 16
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What should I do to check if it is the DME? Should i unplug then plug it back in?
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01-21-2015, 03:31 PM
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Registered
Join Date: Jun 2014
Location: Lake County, FL
Posts: 820
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Quote:
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01-21-2015, 03:37 PM
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Registered User
Join Date: Jan 2015
Posts: 16
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Okay i will have a look! by the looks of the DME it has been replaced before. looks aftermarket. but i will pull it apart and let you know what I see!
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01-21-2015, 03:55 PM
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Registered User
Join Date: Jan 2015
Posts: 16
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Okay so I pulled out the DME and looked at the solders. Honestly they look quite burnt up, it even smells melted. Could this be the problem?
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01-22-2015, 12:42 AM
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Registered
Join Date: Jun 2014
Location: Lake County, FL
Posts: 820
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Quote:
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01-22-2015, 02:45 AM
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| Tags |
| 83 944 , reference sensor , starting issues |
Heidi the NA
