Author Topic: EFI Fuse (Read 2701 times)

JohnHalladay · « **on:** Apr 18, 2008, 12:20:55 PM »

OK so my my fuel pump stoped working over night. i went out to my truck this morning to find out the problem. the efi fuse was blown. (15 volt) i replace the fuse and the truck fired up. it ran for a min then i shut it off. i just went outside i few min ago to start my truck up and it wont fire. so i check that fuse again and it was blown. (the brand new fuse). what is causeing my truck to blow EFI fuses?

emsvitil · « **Reply #1 on:** Apr 18, 2008, 12:49:03 PM »

Sounds like the fuel pump is starting to fail and taking out the fuse..........

If you can, plug in an amp meter into the fuse location and see what the current draw is...

JohnHalladay · « **Reply #2 on:** Apr 18, 2008, 01:04:16 PM »

can this wire have anything to do with it? this wire is under the dash. next to the fuse box. and its not connected to anything. maybe it could be the problme.

it has a fuse in the middle of the wire too.

TIMS89CRAWLER · « **Reply #3 on:** Apr 18, 2008, 03:17:08 PM »

I think you mean 15 amp not 15 volt

BLACKDOG · « **Reply #4 on:** Apr 18, 2008, 03:42:51 PM »

Check your 02 sensor. I had the same problem with my EFI fuse blowing, and it turned out to be the 02 sensor wires laying against the exhaust, melting off the coating on the wires, and shorting out against each other.

JohnHalladay · « **Reply #5 on:** Apr 18, 2008, 05:05:21 PM »

hahahahah it was the o2 senser! thanks

BLACKDOG · « **Reply #6 on:** Apr 18, 2008, 07:20:28 PM »

Quote from: JohnHalladay on Apr 18, 2008, 05:05:21 PM

hahahahah it was the o2 senser! thanks

no problem.

Took me a while to find the problem too.

JohnHalladay · « **Reply #7 on:** Apr 19, 2008, 09:54:40 AM »

haha yea i have only a down pipe on my truck right now. and my o2 senser was just sitin on the frame rail!

Author Topic: EFI Fuse (Read 2701 times)

JohnHalladay

EFI Fuse

emsvitil

Re: EFI Fuse

JohnHalladay [OP]

Re: EFI Fuse

TIMS89CRAWLER

Re: EFI Fuse

BLACKDOG

Re: EFI Fuse

JohnHalladay [OP]

Re: EFI Fuse

BLACKDOG

Re: EFI Fuse

JohnHalladay [OP]

Re: EFI Fuse

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	Author Topic: EFI Fuse (Read 2701 times) 0 Members and 1 Guest are viewing this topic. JohnHalladay Rock Master Turtle Points: -6 Posts: 221 Member since Dec '07 EFI Fuse « on: Apr 18, 2008, 12:20:55 PM » OK so my my fuel pump stoped working over night. i went out to my truck this morning to find out the problem. the efi fuse was blown. (15 volt) i replace the fuse and the truck fired up. it ran for a min then i shut it off. i just went outside i few min ago to start my truck up and it wont fire. so i check that fuse again and it was blown. (the brand new fuse). what is causeing my truck to blow EFI fuses? Logged emsvitil Silver Turtle Award Turtle Points: 7571 Posts: 3,561 Member since May '07 Re: EFI Fuse « Reply #1 on: Apr 18, 2008, 12:49:03 PM » Sounds like the fuel pump is starting to fail and taking out the fuse.......... If you can, plug in an amp meter into the fuse location and see what the current draw is... Logged Ed SoCal 86 SR5 XtraCab 22RE W56B 31x10.50R15 JohnHalladay [OP] Rock Master Turtle Points: -6 Posts: 221 Member since Dec '07 Re: EFI Fuse « Reply #2 on: Apr 18, 2008, 01:04:16 PM » can this wire have anything to do with it? this wire is under the dash. next to the fuse box. and its not connected to anything. maybe it could be the problme. it has a fuse in the middle of the wire too. Logged TIMS89CRAWLER The 1.5K Club Turtle Points: 35 Posts: 1,968 Member since Oct '07 BORN TO WHEEL, FORCED TO WORK... Re: EFI Fuse « Reply #3 on: Apr 18, 2008, 03:17:08 PM » I think you mean 15 amp not 15 volt Logged Having a 12 second Honda is just like coming out of the closet; You're going to surprise a bunch of people, but in the end you're still gay. www.choptechfab.com www.myspace.com/choptechfab 1989 x-cab truck, 96 2rz swap, MC07-R10 duals w/flat belly, doved front, bobbed bed, all pro 5" springs F&R, lincoln locked F&R, 38.5" sx's and still at it! CHECK THE BUILD http://board.marlincrawler.com/index.php?topic=39494.0 BLACKDOG 3.0 Killer Gold Turtle Award Turtle Points: 718 Posts: 7,644 Member since Aug '04 I used to fit Re: EFI Fuse « Reply #4 on: Apr 18, 2008, 03:42:51 PM » Check your 02 sensor. I had the same problem with my EFI fuse blowing, and it turned out to be the 02 sensor wires laying against the exhaust, melting off the coating on the wires, and shorting out against each other. Logged Its better to die on your feet than live on your knees "Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free. " "I don't believe in a government that protects us from ourselves." -Ronald Reagan Don't take life too seriously, it isn't permanent JohnHalladay [OP] Rock Master Turtle Points: -6 Posts: 221 Member since Dec '07 Re: EFI Fuse « Reply #5 on: Apr 18, 2008, 05:05:21 PM » hahahahah it was the o2 senser! thanks Logged BLACKDOG 3.0 Killer Gold Turtle Award Turtle Points: 718 Posts: 7,644 Member since Aug '04 I used to fit Re: EFI Fuse « Reply #6 on: Apr 18, 2008, 07:20:28 PM » Quote from: JohnHalladay on Apr 18, 2008, 05:05:21 PM hahahahah it was the o2 senser! thanks no problem. Took me a while to find the problem too. Logged Its better to die on your feet than live on your knees "Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free. " "I don't believe in a government that protects us from ourselves." -Ronald Reagan Don't take life too seriously, it isn't permanent JohnHalladay [OP] Rock Master Turtle Points: -6 Posts: 221 Member since Dec '07 Re: EFI Fuse « Reply #7 on: Apr 19, 2008, 09:54:40 AM » haha yea i have only a down pipe on my truck right now. and my o2 senser was just sitin on the frame rail! Logged