Fuse Blows

Asked by Feb 24, 2011 at 10:09 PM about the 1992 Toyota MR2 Turbo T-bar

Question type: Maintenance & Repair

The 120 Amp fuse keeps blowing.  I cannot trace the problem even with a wiring diagram.  Now, the 80 Amp fuse for the ABS has just blown too.  Any thoughts?

3 Answers

1,545

If your talking about the main bus fuse for your power distribution box I'd suspect the alternator is shorting out, disconnect the alternator and run the car (short distance only) the way you did when the fuse blew the first time, if it does not blow the fuse then replace the alternator.

That was my theory too as it looks like the alternator fields have shorted to the case. We disconnected it and ran it for a while w/out any problem. It still could be bad. However, the power steeering has not worked in a while, and was intermittent so I am about to troubleshoot the electric ps system to see if that is the culprit. The car belongs to my brother who is trying to get this fixed so he can sell it. No shop wants to touch it.

Oh! It did blow again a few days after disconnecting the alternator.

Your Answer

Add photo

Related Questions

  • Why does the fuse blow when switching the side lights on. 2 answers

    The footwell fuse- 15amp- blows when the light switch is turned on, the headlights still pop up and work but no side lights or dash lights and the turbo timer has stopped working. Ive checked all the ...

    1992 Toyota MR2 Turbo coupe

    -

    Maintenance & Repair

  • Fried electrical? Or just a fuse? 4 answers

    I was helping a neighbor who had a dead battery. I was giving him a jump and he connected the battery cables to the wrong terminals on my MR2. The MR2 continued to run but after I turned it off it was...

    1988 Toyota MR2 Supercharged Coupe

    -

    Maintenance & Repair

  • =( 15 answers

    my 1993 mr2 is blowing white smoke... =( not happy, any ideas of what it could be.

    1993 Toyota MR2

    -

    Maintenance & Repair

  • what could be the problem to my 1991 mr2 turbo? 1 answer

    i cant redline anymore on my mr2 sw20 turbo...sometime my turbo would spool n there will be no power to my engine..feel as if it is just sucking in air n its not going into the engine

    1991 Toyota MR2 Turbo T-bar

    -

    Maintenance & Repair

  • fuses blowing 2 answers

    When you turn on the radio it causes the turn signal fuses to blow

    1997 Toyota Camry LE

    -

    Maintenance & Repair

MR2

Looking for a Used MR2 in your area?

CarGurus has 20 nationwide MR2 listings and the tools to find you a great deal.

ZIP:

Search Toyota MR2 Questions

Toyota MR2 Experts

#1 Nick Eidemiller
Nick Eidemiller
Reputation 200
#2 carGrrl
carGrrl
Reputation 130
#2 Francis Lapointe
Francis Lapointe
Reputation 130
View All

Related Models For Sale

Used Toyota Supra
48 listings
Used Mazda MX-5 Miata
58 Great Deals out of 4,957 listings starting at $2,500
Used Toyota Celica
5 Great Deals out of 405 listings starting at $999
Used Mazda RX-7
54 listings
Used Nissan 300ZX
156 listings
Used Ford Mustang
361 Great Deals out of 44,495 listings starting at $1,000
Used BMW 3 Series
1,384 Great Deals out of 37,799 listings starting at $1,500
Used Chevrolet Corvette
178 Great Deals out of 20,807 listings starting at $3,995
Used Mitsubishi Lancer Evolution
24 Great Deals out of 632 listings starting at $14,995
Used Toyota Corolla
874 Great Deals out of 74,435 listings starting at $1,500
Used Nissan 240SX
13 listings
Used Honda Civic
668 Great Deals out of 77,418 listings starting at $1,000

Used Cars For Sale