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View Full Version : after alterstart altenator install - I have a problem

speedingbullet
April 28th, 2003, 06:38 PM
Ok i installed the alterstart 180 amp altenator it came with the smaller pulley so i also installed the 46in belt. My problem now is that whenever the tranmission is in park or neutral my revs go to about 2000 then fall back down to 1100 and it keeps repeating itself. :mad: In reverse and drive there are no problems. Do i need to reset the ECU? What is wrong? Has anyone else experienced this problem?
Also is it normal for my car to idle at 1100 rpm after i installed the alterstart alternator? Should i just have swapped out the pulley with the original one? ARRRRRRR too many problems with my car
01SILVERCOUPE
April 28th, 2003, 07:09 PM
Originally posted by speedingbullet on April 28th, 2003 at 05:38 PM

Ok i installed the alterstart 180 amp altenator it came with the smaller pulley so i also installed the 46in belt. My problem now is that whenever the tranmission is in park or neutral my revs go to about 2000 then fall back down to 1100 and it keeps repeating itself. :mad: In reverse and drive there are no problems. Do i need to reset the ECU? What is wrong? Has anyone else experienced this problem?
Also is it normal for my car to idle at 1100 rpm after i installed the alterstart alternator? Should i just have swapped out the pulley with the original one? ARRRRRRR too many problems with my car


hey i kinda have a simliar problem... when at idle my cars at 1100 then drops SLOWLY to like 800 it kinda freaks me out sometimes that its gonna go all the way down and engine will shut off.. :eek:
abram2001
April 28th, 2003, 08:15 PM
just asking out of curiousity, how old is ur present battery, and what kind of battery is it?
01SILVERCOUPE
April 28th, 2003, 08:17 PM
my car only has 28k miles....
TeamGujuRacing
June 3rd, 2003, 09:04 PM
Hold up, yours came with a pully..my alterstart alternator never came with it. Maybe they just started to include it. I did by mine almost 2 years ago when I upgrade my stereo system, etc. I am currently using the UR alt. pulley and no idle problems here.

-Amit B.
Nittanys1
August 27th, 2004, 09:40 AM
I got my alt from alterstart too. I picked up the 4 cyl model and they included an upgraded power wire for it. Thing is i looked to install it and i have to take apart all the engines wireing to hook it up...and i know i have to hook it up to the fuse box but cant figure out what needs to be done...anyonen have any help?