HELP blown ecu fuse

slydogge · 08-16-2004, 11:05 AM

hey guys i have a 1992 ford explorer. the i parked the car and when i came back it would not start. the 30 amp ecu fuse was blown in the dist. box under the hood. when i put another in it it blew aswell. whats up? where should i start? thanks for any help!

MrShorty · 08-16-2004, 11:26 AM

What's up? You have a short or other electrical fault somewhere.
Where to start? If it were me, I'd get a wiring diagram and start looking over everything that is fed by that fuse. It could get tedious and frustrating, so a good dose of patience may be in order. Look over the wiring and make sure there's nothing obvious (bare wires and such). Check the wiring from the fuse to the EEC relay. Check the EEC relay to make sure it hasn't shorted out internally. You could try unplugging everything that gets power from the EEC relay (there are several items, including the computer). Then plug them in one at a time and see which one blows the fuse.

slydogge · 08-16-2004, 09:24 PM

yea i am trying the relay tomorrow thanks!!!

slydogge · 08-17-2004, 02:53 PM

come on guys ??

08-16-2004, 11:05 AM	#1
slydogge Wannabe Elite Explorer pace fl 94 eddie B Join Date: Jul 2004 Posts: 138 Vehicle Specs (Original Poster)	HELP blown ecu fuse hey guys i have a 1992 ford explorer. the i parked the car and when i came back it would not start. the 30 amp ecu fuse was blown in the dist. box under the hood. when i put another in it it blew aswell. whats up? where should i start? thanks for any help!

08-16-2004, 11:26 AM	#2
MrShorty Wannabe Elite Explorer Spanish Fork, UT 92 XLT and '87 Bronco II Join Date: Dec 2001 Posts: 4,934 Vehicle Specs	What's up? You have a short or other electrical fault somewhere. Where to start? If it were me, I'd get a wiring diagram and start looking over everything that is fed by that fuse. It could get tedious and frustrating, so a good dose of patience may be in order. Look over the wiring and make sure there's nothing obvious (bare wires and such). Check the wiring from the fuse to the EEC relay. Check the EEC relay to make sure it hasn't shorted out internally. You could try unplugging everything that gets power from the EEC relay (there are several items, including the computer). Then plug them in one at a time and see which one blows the fuse. __________________ Mr. Shorty 92 XLT 4x4 87 Bronco II XLT 4x4 '98 Chev K1500 Suburban SLT 4x4

08-16-2004, 09:24 PM	#3
slydogge Wannabe Elite Explorer pace fl 94 eddie B Join Date: Jul 2004 Posts: 138 Vehicle Specs (Original Poster)	yea i am trying the relay tomorrow thanks!!!

08-17-2004, 02:53 PM	#4
slydogge Wannabe Elite Explorer pace fl 94 eddie B Join Date: Jul 2004 Posts: 138 Vehicle Specs (Original Poster)	come on guys ??