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Old 12-10-2011, 07:17 PM   #36 (permalink)
3dplane
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Location: Florida
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14 Mirage - '14 Mitsubishi Mirage DE
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You could only over tax your alternator if you allow it to charge up a severely discharged battery. However you are running a small capacity battery so that should pick up voltage faster causing the amp load on the alt.to decrease before it overheats. Who knows what exactly is going on?

I would put a regular battery in there, hook up an accurate voltmeter and go for a ride,monitoring the voltage. Turn on lights too to make sure it works.

If it's still acting up and all your connections are good you can call it an alternator. (maybe the PCM or ECM or ECU whatever Honda calls it can also manipulate the alt. but I would not go there yet)

I recently tested a voltmeter in my car and discovered weird things. (94 mazda protege 1.8L manual SOHC). When I take off with a cold engine,the alternator will not charge regardless of electrical load until I'm about 3-4 miles down the road! (morning or evening).
When it starts charging or coolant temp is beyond a certain point,I can do "regen" key off if I let the clutch out and the engine rpm hits at least about 2000 rpm the alt. WILL charge all the way down to very low rpms like 15 mph in 4th gear for example. Full output regardless of electrical loads! This is confirmed by three different volt meters and an ammeter. Weird!

Back to your case,your alternator might be just going out regardless of your mods!
Barna
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