Ignition/fuse problem Options

[celica95st]

Ok...where to start...I keep blowing my Gauge fuse whenever I put the key in and it's happend before and all i did was replace the battery and it worked. I replaced the battery and alternator and still blowing the fuse. A piece of paper with wiring diagrams came with the alternator and it said it was the ignition. Should I get a new ignition system (coil, cap, rotor, plugs, wires)? Please help me on this

[D-Man]

Ok...where to start...I keep blowing my Gauge fuse whenever I put the key in and it's happend before and all i did was replace the battery and it worked. I replaced the battery and alternator and still blowing the fuse. A piece of paper with wiring diagrams came with the alternator and it said it was the ignition. Should I get a new ignition system (coil, cap, rotor, plugs, wires)? Please help me on this

no no, its not necicery that these items are causing the problem; in fact I doubt that any of them are. The first thing you need to check is your wireing to the gauge itself. If someone used electrical tape or anything other than a connector to attach the wires where they're going, start by fixing that. Chances are that something my be wired backwards, or even just a positive thread not holding tight and catching a shock when you pass a charge thru it. (starting the car) Changing the battery could have jostled it a bit to keep it from grounding out for a while. But now, a new battery isnt working. I'd recommend trying these WELL know culprit's first, before assuming generally good guys (coil, cap, rotor, plugs, & wires) of doing mal-deeds.

I may be wrong, but what are the chances of theese items blowing ONLY your gauge fuse and doing nothing else wrong?

Also, by gauge fuse; are you referring to your insterment cluster or to an after market gauge such as a boost gauge or a tachometer (ect.)?