Civicman86

OK here is the case. I put uberdata in the car (just to get a feel for how it work, burning chips, etc). All worked well. Well sometimes on hot starts the car will idle and from 0-3,500 RPM the volts will be around 12.5. As soon as you hit 3,500 they jump up to 14.7. So my first thought was well something in uber or the chipped ecu is casuing this. Took the ecu out and replaced it with the stock ecu. Hadnet experinced it in a while and came out this morning to start my car for school and it was doing it (cold start this time). At night when the headlights are on you can see them dim down under 3,500 and brighten when you hit >3,500. So what is my problem? Alternator?