Engine Problems, Fuel, Spark? |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Engine Problems, Fuel, Spark? |
Solo914 |
Apr 26 2006, 02:46 PM
Post
#1
|
Member Group: Members Posts: 266 Joined: 6-March 06 From: Redmond, WA Member No.: 5,678 Region Association: None |
Last night i pulled into a parking lot and the engine just died. I immediately tried to start it again and it did start but with in 3-5 seconds it sputtered and died. It acts like there is enough fuel when I start the car and then it runs out. I have had this happen on a couple occasions while periodically puting the car back together and it was usually fuel related. One time I had kinked a fuel hose and it acted the same way and the other time I had either forgot to hook the wire back up to the AFM or I had a hose that wasn't attached in the intake line before the AFM. I have checked my fuel lines and everything looks fine(even lifted the fuel tank to see is if there was a leak or if I had kinked a hose). I have also checked all of the intake hoses to make sure that all of those were attached. I have not had a chance to check the fuel pump and fuel pump wiring and will do that today.
Does this sounds familiar to anyone else? Will the car start at all if the fuel pump is not working properly? FYI- I have checked the fuel level and I am above a quarter tank and have visually seen that there is enough fuel. The car is a Stock 914 1.8L with the standard L-jetronic fuel injection |
Solo914 |
Apr 26 2006, 07:45 PM
Post
#2
|
Member Group: Members Posts: 266 Joined: 6-March 06 From: Redmond, WA Member No.: 5,678 Region Association: None |
Update:
-Pulled the fuel filter and replaced(needed to be done anyway). Still did not stay running -Plenty of fuel upto the fuel pump. -Connections to the fuel pump are fine. Still did not stay running -Cleaned up the connections to fuel pump relay and replaced a couple connections. Still did not stay running. - Bypassed the fuel pump relay with a test wire on the plug(the plug was not attached at all to the realy). I could here the fuel pump running so I tried to start the car and it wouldn't start - Then I connected the relay to the plug but bypassed the relay with a test wire from the rear of the plug. The car started and stayed running. -Pulled the test wire and it died. Now it could be the relay, correct? Could it be something else that relay controls besides the fuel pump? |
Dave_Darling |
Apr 26 2006, 10:05 PM
Post
#3
|
914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
- Bypassed the fuel pump relay with a test wire on the plug... Which relay? The 1.8 does not use the "fuel pump relay" on the relay board. It uses the "dual relay" that hangs off the battery tray. If it was the "dual relay" you were bypassing, then it makes sense that nothing would happen with the relay unplugged. There are two relays in one housing there, which is why it's called "dual". Without the other relay being plugged in, the FI won't get powered, even though you can force the pump to run. Does the pump run with the key on and you manually pushing the flap in the air flow meter open? --DD |
Lo-Fi Version | Time is now: 17th June 2024 - 09:36 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |