mustang racer06

Yeah ford had told me $400 for there's but i heard they weren't the best. Ive seen the PA ones from AM before, looks like good stuff. Ive heard its a good idea to get a power wire kit, but if i go with a 130amp alternator (which i assume is more amps then stock, i have to research that) would that be nessesary? I can understand if I needed the extra power boost but i dont. I appreciate all of your opinions, means alot.

mustang racer06

Correction, they are stronger alternators apparently.

moosestang

All the replacement alternators say 130-135, so I believe that is close to stock. I don't think the wire upgrade is necessary.

moosestang

Your cars electrical system uses DC current. Your alternator produces AC current and then converts it to DC. AC current running through the system can cause all kinds of crazy crap. With the throttle body being right above it, it probably effect the electronic throttle.

mustang racer06

Oh wow thats interesting never even heard of that. Since the computer cleared itself the day i made this post, I havent felt any problems or seen any lights. Im sure theyll be back. Ill repost when something else happens. Thanks for your input.

mfergel

Yeah, it will come back. Mine was off and on for months. I could go weeks with no light, it would show up a day, go away for a day, etc.

mustang racer06

Yeah thats similar to whats going on now. Now this will continue until one day the alternator fully craps out right?

moosestang

right. It will eventually quit charging, but I wouldn't wait for that. AC voltage is no good for you electrical system. It could fry your ecm if it were severe enough.

mfergel

What he said.

mustang racer06

Codes on again today; forgot to bring up the fact that i have steeda udps, would this have any negative effect or would help cause the p0340 code problem? They were on for a little over a month before the light came on but figured id ask u guys anyway.