Need 3.2 conversion electrical help |
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Need 3.2 conversion electrical help |
mepstein |
Aug 13 2017, 12:20 PM
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#1
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914-6 GT in waiting Group: Members Posts: 19,307 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
I can't get my fuel pump to run unless I jumper the plug for the DME relay. The car starts and runs with the connection jumped but the fuel pump then runs all the time. Just want to know where to look and what to do.
I'm very electrically challenged so you might need to really dumb it down for me. Thanks |
Steve |
Aug 13 2017, 09:24 PM
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#2
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914 Guru Group: Members Posts: 5,606 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California |
Do what Spoke suggested and put an ohm Meter on pin 20 of the dme. It should be grounded while cranking the starter. If it's not then something else connected to the DME is causing the problem. Have to troubleshoot each sensor / inputs on the DME to figure it out. I have had lots of interesting problems with my injection that I used the Bentley manual to trouble shoot.
Motor won't start after installing for the first time - turns out it was a pinched fuel line under tank which doubled the fuel pressure Car sat for 3 years and wouldn't start (rustoration) -Pelican guy's on there 911 forum recommended unplugging the injectors one at a time. After unplugging the last one it started and ran on 5 cylinders. Shut motor off and plugged it back in and now it runs fine on all six cylinders for over two years now. The flywheel sensors are also known causing no start issues. Some people replace them and get rebuilt injectors when they overhaul the engine. Otherwise mine runs great and I have not had any problems besides the above. Not bad for 33 year old original motor with a bazillion miles on it!! |
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