alternator drain on 2000 Volkswagen Jetta

i just put in a new 120 amps alternator and its coming up on the computer as a bad alternator. I dont know what to do any suggestions? thanks guys

by in Kernersville, NC on November 04, 2009
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3 answers 2 comments
ANSWER by , November 04, 2009
Could be a defective alternator have the parts store check it with their alternator test machine
ANSWER by , November 04, 2009
What is the problem you are having? And what type of test are you performing on the alternator?
COMMENT by , November 04, 2009
i have a black and decker battery charger and it has a alternator tester
COMMENT by , November 04, 2009
Thanks for the reply, but to be able to advise you, I need to know what the original problem was, and what the problem is now. Are there any battery lights on? Is the battery OK?
ANSWER by , November 22, 2009
maybe its telling you there is no alternator charging occuring which could be other than an alternator. does the battery light in dash light with key on, eng off? this circuit is important to "excite" the alternator. check the bulb and wiring (think wire is blue) if no light.