Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered
 
84toy's Avatar
 
Join Date: Oct 2003
Location: Sacramento, CA
Posts: 666
Unhappy Help with troubleshooting

I previously posted a message about my 84 won't run. Thanks for the help. Still broke though. Can someone tell me if the engine will run at all (even poorly) with the following disconnected:

1. The AFM
2. The throttle position sensor

Also, since my fuel pump is running continuosly when ignition is on and it is not the main relay (the DME is sending a ground signal) could the speed or TDC sensor being faulty cause the DME to think the engine is rotating and energize the main\fuel pump relay?

Thanks,

Paul

Old 11-03-2003, 02:08 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered
 
Jim Smolka's Avatar
 
Join Date: Aug 1999
Location: Hickory NC USA
Posts: 2,502
Pull the DME relay, if the Fuel Pump still runs, then the wiring has been altered.

If the removed DME relay causes the FP to stop, then obviously either the DME relay's contacts are fused together, or there is power to the coil. With the DME relay removed, measure the resistance btwn the power contacts of the relay (should read open).
__________________
'75 914-6 3.2 (Track Car)
'81 SC 3.6 (Beast)
'993 Cab (Almost Done Restoring)
Old 11-03-2003, 03:09 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered
 
Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
Paul, the problem could have been caused by a slight mixup when you changed your ignition cables. Not long ago I did mine and was unable to get my engine to start for the next two days. Thought I was very careful but found out later that I swapped two wires...what a fool am I???

Cheers,

Joe
Old 11-04-2003, 09:26 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered
 
Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
OOPS!


Last edited by stlrj; 11-04-2003 at 12:19 PM..
Old 11-04-2003, 09:26 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Reply


 


All times are GMT -8. The time now is 02:18 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.