 914 Fuel Pump fuse on relay board blows |
|
|
|
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. |
|
|
| Sea Dragon 914 |
 Nov 29 2013, 06:53 PM
Post
#1
|
|
Member  Group: Members Posts: 114 Joined: 26-February 03 Member No.: 358 Region Association: Northern California  |
Does anyone know what are common causes of blowing the fuse on the engine relay board for the fuel pump and how to diagnose it? Would a bad fuel pump cause this?
Thanks, |
   |
 
|
  |
Replies
| Mike Bellis |
Nov 30 2013, 10:57 PM
Post
#2
|
|
Resident Electrician Group: Members Posts: 8,346 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
|
Looks like the heater fan may come from that circuit.
    |
|
|
|
| velum |
Jul 7 2019, 03:14 PM
Post
#3
|
|
Member Group: Members Posts: 50 Joined: 4-June 08 From: Montréal, Qc, Canada Member No.: 9,135 Region Association: None |
QUOTE(Mike Bellis @ Dec 1 2013, 12:57 AM)  Looks like the heater fan may come from that circuit. Thanks for the diagrams! I had the same problem and studying them helped me to understand what was connected to the same fuse as the fuel pump. I removed the auxiliary air regulator to measure its resistance, but it was ok, so I also unplugged the rear defogger relay, and my fuel pump is now working. I could not tell though whether removing the rear defogger relay or unplugging and replugging the AAR solved the issue, but it is probably the former one. |
|
|
|
Posts in this topic
Sea Dragon 914 914 Fuel Pump fuse on relay board blows Nov 29 2013, 06:53 PM
Dave_Darling The most common cause is that the aux air regulato... Nov 29 2013, 07:17 PM
Sea Dragon 914 Thanks Dave. I'll check it out this morning.
... Nov 30 2013, 09:40 AM
Sea Dragon 914 Kind of worked. I disconnected the Aux Air valve c... Nov 30 2013, 10:09 PM Sea Dragon 914 If I'm reading the schematic correctly, there ... Nov 30 2013, 11:24 PM Mike Bellis
If I'm reading the schematic correctly, there... Nov 30 2013, 11:26 PM euro911 The low-rating fuse is the probable cause, but che... Dec 1 2013, 12:48 AM screenguy914
The low-rating fuse is the probable cause, but ch... Apr 2 2015, 01:29 PM Dr Evil But, also consider that the heater fan (decent amp... Dec 3 2013, 11:05 PM 9won4 Thank you...thank you!! Just ran into thi... Apr 1 2015, 09:46 AM Tom SDR,
A lot of folks started using a 16 amp fuse... Apr 1 2015, 02:33 PM euro911 A bad ground will tend to cause an increase in cur... Apr 1 2015, 10:21 PM Alaska914 Where is the aux air regulator wire located. I’m... May 5 2020, 08:48 PM |
5 User(s) are reading this topic (5 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 25th November 2024 - 11:35 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.