I have a problem with my 98 civic hatch the lights flutuate and the ac does also. I thought that maybe you could bypass the field reference wire from the alternator through a switch to a 12v source. I have seen this done to gm alternator when they are going to me used for db competition and also saw this on an article for a windmill generator using a gm car alternator. I don,t realy care if i get a check engine light or if i will not pass emission with this i buy the inspection underground (so no emissions test done here).

The field windings are initially supplied via the ignition switch and charge warning light, which is why the light glows when the ignition is on but the engine is not running. Once the engine is running and the alternator is generating, a diode feeds the field current from the alternator main output, thus equalizing the voltage across the warning light which goes out. The wire supplying the field current is often referred to as the "exciter" wire. The drawback of this arrangement is that if the warning light fails or the "exciter" wire is disconnected, no priming current reaches the alternator field windings and so the alternator will not generate any power. However, some alternators will self-excite when the engine is revved to a certain speed.

Here another article i found interestig: http://www.alternatorparts.com/under...lternators.htm

Here is the charging diagram i found in mitchell ondemand

Here is the same diagram but has the mod of the idea i'm talking about above. C17 in the ecu will not be used


Any comments are welcome