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Forum nameTurbo/Nitrous Tech
Topic subjectBlown Main Motor Fuse
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=8160
8160, Blown Main Motor Fuse
Posted by CDaJackol, Sep-08-01 10:02 AM
On monday i did a compression test on my car and everything came up fine. On the way home my engine stalled i thought it was probably something i knocked loose during the compression test. I found that i had a blown motor fuse; i got the car towed home and put in a new 30A fuse but it blew right away. I reset the computer and disconnected the battery; still the same. I got out a test light and found that the circuit was being grounded. I checked everything i could think of and the last thing that i did was disconnect the fuel pump relay and the and the grounding problem went away. I reconnected the fuel pump relay and put in a new fuse and i thought that was the problem. I go to start the car but it still will not start; everything thing else works the starter, lights, radio,etc. except i do not hear the walbro fuel pump turnig on when i try to start the car. Could i have screwed the fuel pump relay during the compression test?

CDaJackol
STAR STAGE II
8161, RE: Blown Main Motor Fuse
Posted by RAIZIN, Sep-08-01 12:10 PM
I know EXACTLY what it is.. after you read this check it right away. If you look at the EGR tube right next to or under your intake pipe on the right of the head.. there is a wiring harness that runs across the top of it. More than likely the heat of the EGR tube melted away at this harness insulation and grounded it out. pull that wiring harnes upward and replace the fuse and start the car. I'll put money on it that this is the problem. You know how I know? I myself and two other people had the same thing happen.
8162, RE: Blown Main Motor Fuse
Posted by Amish_Eclipse, Sep-08-01 03:52 PM
i dunno about that but your main motor fuse is at elast 90 amps, the alternator fuse. yeah 30 amps would blow right away

"i know i'm not a bad guy when i try to do what's right
everyone who comes to me don't understand or see my plight
everything i've ever done all the plans i've had in sight
always missed and gone wrong and always i gave up and said alright."

BKR5E-11's
cone filter
brospeed muffler from mx-3
exhaust leak (mad power gain)
8163, RE: Blown Main Motor Fuse
Posted by RAIZIN, Sep-08-01 05:14 PM
wrong.. the fuse in the fuse box labeled "engine" is 30 amps....
8164, RE: Blown Main Motor Fuse
Posted by MuRiX, Sep-09-01 11:10 PM
Raizin is right. I had this EXACT same thing happen to me. Same wire too. It melted right through so that it was grounding.

MuRiX
97 Eclipse GS HRC Stage IV+
Sitting and collecting dust most of the time..
A.D.P.
http://www.murix.com

8165, RE: Blown Main Motor Fuse
Posted by CDaJackol, Sep-09-01 12:46 PM
Too bad its dark right now but i will check it tommorrow thanks for the info.


CDaJackol
STAR STAGE II
8166, RE: Blown Main Motor Fuse
Posted by Amish_Eclipse, Sep-09-01 12:55 PM
i don't think i have an "engine" fuse. i have an alternator fuse and it's 90 amps and it kept blowin out whenthey installed my battery backwwards and they bridged it with a paperclip and it blew that up to and they wre like oh shit and never thought that they maybe hooked the battery up wrong.

"i'm like a dog, i don't speak but i understand."
-jay-z from "never change" on the blueprint

BKR5E-11's
cone filter
brospeed muffler from mx-3
exhaust leak (mad power gain)
8167, RE: Blown Main Motor Fuse
Posted by Michael_97RS, Sep-12-01 08:21 AM
If you open the fuse box under the hood if I remember right it's on the top left one of the larger square fuses, look at the cover with the description.

"Character is doing the right thing when no one is looking."
Michael J. Kulaga e-mail: Michael_97RS@2gntDSM.zzn.com
aol IM: MJKulga Website: http://highlander.dsmpower.com/

Injen CAI, AFX UDP, 55mm TB, GS-T Muffler, FU/RU/RL STBs, NRG Susp. Motor Mount Ins., 8.5mm Magnecor Wires, Bosch Rapidfire Plugs, TSW Blade 17x7.5, Bridgestone Potenza RE730 215/45ZR-17. Front KVR Cross-Drilled Rotors and Carbon Fiber Pads, S-AFC, SS Clutch Line

And in my Room: Rear disc brake conversion kit, SS Brake Lines, Rear KVR Cross Drilled Rotors and KVR Carbon Fiber Kevlar Pads, EGT, Hooker 4-1 Stepped Header

Waiting for: Front Lower Tie Bar, Ported/Polished Intake Manifold
8168, RE: Blown Main Motor Fuse
Posted by CDaJackol, Sep-12-01 08:44 AM
Well I did find out what was wrong with my car but it still doesn't run. I looked under the intake tube and around the EGR tube and i saw the problem. The main bundle of wires that go to various sensors had the outer black plastic cover melted; which left the bottom wires in the bundle to touch the EGR tube. Three wires that go to the camshaft sensor had the insulation melted and were grounding to the EGR tube, and one wire that goes to the EGR sensor also was exposed and grounding out. I wraped all the exposed wires with electrical tape but the the engine still doesn't turn over. I ordered a new fuel pump relay because i know the fuel pump is not getting voltage so hopefully that is the problem and i do not need a whole new engine electrical
system.

CDaJackol
STAR STAGE II
8169, RE: Blown Main Motor Fuse
Posted by RAIZIN, Sep-12-01 10:42 AM
uhm.. did you replace the fuse after you wrapped the holy fuck out of your wires?