 914 Fuel Pump fuse on relay board blows |
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| Sea Dragon 914 |
 Nov 29 2013, 06:53 PM
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#1
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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, |
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| Mike Bellis |
Nov 30 2013, 10:57 PM
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#2
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Resident Electrician Group: Members Posts: 8,347 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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Looks like the heater fan may come from that circuit.
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| velum |
Jul 7 2019, 03:14 PM
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#3
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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. |
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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 |
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