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HELP, electrical problems

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Old Aug 12, 2002 | 01:25 PM
  #1  
benelliwang's Avatar
benelliwang
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Default HELP, electrical problems

I have two strange electrical problems I can’t figure out why. It started happening about 1-½ years ago, it does not seem to effect performance or drivability but it is starting to bug me.
1. The little information screen cannot hold it’s last display. I like to keep it on Avg MPG or Oil Temp, but it does not seem to keep the settings. I can be out of the car for 10 minutes, get back in start her up and the display is back to Odometer and ave mpg is back to 0. Sometimes it can keep my last display setting but most of times it is back to odometer.

2. Once the engine is warmed up, the lights kind of dims/blinks as I idle at a red light. It can be seen clearly at night. The lights, instrument lights, kind of dims a little and comes right back up every 3 or 4 seconds at idle. With air on or off. You can see the idle dip about 300rpm like and it comes back up. I set my rpm up to 850 after the Heads and cam install but that did not fix the problems.


I have an aftermarket stereo system with two alpine amps and it kind of started after the installation but I cannot find out what the problem is.
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Old Aug 12, 2002 | 01:49 PM
  #2  
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From: DFW TX
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Default Re: HELP, electrical problems (benelliwang)

I have an aftermarket stereo system with two alpine amps and it kind of started after the installation but I cannot find out what the problem is.
I would make sure the circuits to the amps aren't pulling current when the car is off.

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Old Aug 12, 2002 | 07:28 PM
  #3  
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benelliwang
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From: Vegas
Default Re: HELP, electrical problems (benelliwang)

TTT
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Old Aug 12, 2002 | 11:21 PM
  #4  
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rhoeven
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From: San Jose CA
Default Re: HELP, electrical problems (benelliwang)

A couple possibilities come to mind:

1) the battery is old or does not get fully charged. Still stock battery? -> replace.

2) corroded or loose battery terminals. Use some sandpaper, apply some Vaseline and retighten.

3) check the ground connections starting at alternator -> battery -> chassis.

I'd start at #3 and work my way up.
Hope this helps

Roger

I have two strange electrical problems I can’t figure out why. It started happening about 1-½ years ago, it does not seem to effect performance or drivability but it is starting to bug me.
1. The little information screen cannot hold it’s last display. I like to keep it on Avg MPG or Oil Temp, but it does not seem to keep the settings. I can be out of the car for 10 minutes, get back in start her up and the display is back to Odometer and ave mpg is back to 0. Sometimes it can keep my last display setting but most of times it is back to odometer.

2. Once the engine is warmed up, the lights kind of dims/blinks as I idle at a red light. It can be seen clearly at night. The lights, instrument lights, kind of dims a little and comes right back up every 3 or 4 seconds at idle. With air on or off. You can see the idle dip about 300rpm like and it comes back up. I set my rpm up to 850 after the Heads and cam install but that did not fix the problems.


I have an aftermarket stereo system with two alpine amps and it kind of started after the installation but I cannot find out what the problem is.
Reply
Old Aug 13, 2002 | 12:28 AM
  #5  
Richin Chicago's Avatar
Richin Chicago
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Joined: Sep 2001
Posts: 4,411
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From: Wilmington NC
Default Re: HELP, electrical problems (rhoeven)

A couple possibilities come to mind:

1) the battery is old or does not get fully charged. Still stock battery? -> replace.

2) corroded or loose battery terminals. Use some sandpaper, apply some Vaseline and retighten.

3) check the ground connections starting at alternator -> battery -> chassis.

I'd start at #3 and work my way up.
Hope this helps

Roger

I have two strange electrical problems I can’t figure out why. It started happening about 1-½ years ago, it does not seem to effect performance or drivability but it is starting to bug me.
1. The little information screen cannot hold it’s last display. I like to keep it on Avg MPG or Oil Temp, but it does not seem to keep the settings. I can be out of the car for 10 minutes, get back in start her up and the display is back to Odometer and ave mpg is back to 0. Sometimes it can keep my last display setting but most of times it is back to odometer.

2. Once the engine is warmed up, the lights kind of dims/blinks as I idle at a red light. It can be seen clearly at night. The lights, instrument lights, kind of dims a little and comes right back up every 3 or 4 seconds at idle. With air on or off. You can see the idle dip about 300rpm like and it comes back up. I set my rpm up to 850 after the Heads and cam install but that did not fix the problems.


I have an aftermarket stereo system with two alpine amps and it kind of started after the installation but I cannot find out what the problem is.
All the above advice is good. You do have a low voltage problem as the DIC returning to the odometer is a good first warning.
My guess is that your battery is overwhelmed with the current demand and won't take a full charge anymore. if you do go with a new battery you might want to go with a deep cycle battery like Optima offers.
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