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mpi fuse keeps popping


slowpoke
Member
1833/2000


Galant VR-4 org Post #: 1208538 posted 05/16/15 08:07 PM     Remind Me!  Send Private Message   Edit Post      
Alright guys I got my car all back together and I went to start it and nothing happened. Mpi fuse keeps popping. I've checked a few things and a couple different threads but the information leads no where. Any tip or info would be great.



1991 galant vr4 #1833/2000 sm for sale
1991 galant vr4 #548/2000 nb scrapped
1991 TSI AWD potential for 9's

All my cars are built by me for me.

Posts: 158 | From: Racine, WI | Member Since: 11/09/12 | IP: (24.209.190.235) | Report this post to a Moderator

Yao
Senior Member


Galant VR-4 org Post #: 1208557 posted 05/17/15 10:49 AM     Remind Me!  Send Private Message   Edit Post      
try this:

click



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6an, poly mnts, DEL-abs/ps/4ws/egr/evp, Jack's tran, SB-clutch, evo8 whls-245/45/17/springs, 3kvr4 brakes, Koni, 4bolt rear,
ds-map, ntk.

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89Mirageman
It's no Mirage, man


Galant VR-4 org Post #: 1208558 posted 05/17/15 11:06 AM     Remind Me!  Send Private Message   Edit Post      
Did you replace the fuel pump while the car was down by chance? I did this on a 90 GSX several years ago and accidentally pinched one of the wires while putting the metal cover back on and it kept shorting and popping that fuse every time I hit the key. Just a thought.



93 Mitsubishi Expo LRV
95 Eagle Summit DL coupe
98 Mitsubishi Mirage DE coupe

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slowpoke
Member
1833/2000


Galant VR-4 org Post #: 1208613 posted 05/18/15 09:07 AM     Remind Me!  Send Private Message   Edit Post      
Thanks for the link I'll follow this. Got it narrowed down to the mpi circuit off the ecu but I keep finding broken wires and more bs than I wanted.

No I didn't replace the fuel pump in this build not yet anyways. I plan on selling it once it starts and runs



1991 galant vr4 #1833/2000 sm for sale
1991 galant vr4 #548/2000 nb scrapped
1991 TSI AWD potential for 9's

All my cars are built by me for me.

Posts: 158 | From: Racine, WI | Member Since: 11/09/12 | IP: (98.103.244.114) | Report this post to a Moderator

slowpoke
Member
1833/2000


Galant VR-4 org Post #: 1209022 posted 05/26/15 04:48 PM     Remind Me!  Send Private Message   Edit Post      
Problem solved



1991 galant vr4 #1833/2000 sm for sale
1991 galant vr4 #548/2000 nb scrapped
1991 TSI AWD potential for 9's

All my cars are built by me for me.

Posts: 158 | From: Racine, WI | Member Since: 11/09/12 | IP: (24.209.190.235) | Report this post to a Moderator

SouthCaliVR4
Gas Analyzer
825/2000


Galant VR-4 org Post #: 1209032 posted 05/26/15 06:44 PM     Remind Me!  Send Private Message   Edit Post      
What solved the problem? That others may know in the future.



How do you make a small fortune racing? Start with a very large one!!!

Posts: 984 | From: North county San Diego | Member Since: 07/31/10 | IP: (72.214.59.58) | Report this post to a Moderator

MuffinMan7580
Member
570/1000


Galant VR-4 org Post #: 1209037 posted 05/26/15 08:33 PM     Remind Me!  Send Private Message   Edit Post      
Yeah, what was the deal?



'92 GVR4 #570/1000

Posts: 142 | From: Fort Bragg, NC | Member Since: 08/06/11 | IP: (65.191.189.185) | Report this post to a Moderator

slowpoke
Member
1833/2000


Galant VR-4 org Post #: 1209193 posted 05/30/15 02:20 AM     Remind Me!  Send Private Message   Edit Post      
It was self inflicted. A stock boost solenoid wiring was under the battery when I tightened it down and shorted to the battery tray causing it to pop.



1991 galant vr4 #1833/2000 sm for sale
1991 galant vr4 #548/2000 nb scrapped
1991 TSI AWD potential for 9's

All my cars are built by me for me.

Posts: 158 | From: Racine, WI | Member Since: 11/09/12 | IP: (107.77.83.92) | Report this post to a Moderator

WaRrIoRs16
Member +
796/2000


Galant VR-4 org Post #: 1209237 posted 05/31/15 11:40 AM     Remind Me!  Send Private Message   Edit Post      
Same thing happened to me except the solenoid fell down to the axle. It would allow me to start the car and try to drive it and then when the axle turned and knocked the solenoid to just the right spot it would short. PITA to find. We were troubleshooting it in the dark and saw the spark was how we noticed it.



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628/1000 Summit White
91 Black Cherry Talon Auto AWD
94 Pearl White 3KGT
88 Fiji Blue Conquest TSi
03 Labrador Black Evo

Posts: 373 | From: Ferndale, WA | Member Since: 03/23/08 | IP: (204.153.130.50) | Report this post to a Moderator

slowpoke
Member
1833/2000


Galant VR-4 org Post #: 1209405 posted 06/02/15 10:46 PM     Remind Me!  Send Private Message   Edit Post      
Yea we took the harness all out of the loom and everything and just so happened to see the connector under the battery sticking out.



1991 galant vr4 #1833/2000 sm for sale
1991 galant vr4 #548/2000 nb scrapped
1991 TSI AWD potential for 9's

All my cars are built by me for me.

Posts: 158 | From: Racine, WI | Member Since: 11/09/12 | IP: (107.77.89.107) | Report this post to a Moderator

dsm1990tsi
Newbie


Galant VR-4 org Post #: 1210185 posted 06/14/15 08:43 PM     Remind Me!  Send Private Message   Edit Post   
I had a similar issue and found wiring by the ecu rubbed through and caused the fuse to blow.

Posts: 17 | From: Pottstown, Pa | Member Since: 08/09/08 | IP: (66.87.81.32) | Report this post to a Moderator


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