Voltage reg/alt going bad?

Started by 95GTP, April 04, 2004, 08:10:58 AM

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95GTP

I know this car is a volt/amp eater with all the power goodies.  My car seems to be power surging though.  When I slow down the car surges, lights dim and sometimes it will die when the rpm drops way to low (damn thing wont start in neutral have to go all the way to park) like there is a loss of electrical power.

Is it possible that the alt is going?  Internal voltage regulator?  What have you experienced?

TurboGreekPrix

I have the SAME problem w/ mine and mine only has 47,xxx orig. miles i changed the alt last yr same thing though.
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1985 Trans Am Gold & Black (FS)
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god910

IAC, do an re-learn.  As the car idles down (too low, if the IAC thinks it's supposed to) it will lose elec. power becuase it wasn't designed to give 14v at 400 rpm.
1990 Turbo Grand Prix Black Sunshine
282 5 speed, Custom Chip, 1G DSM BOV, K&N on turbo, Centerforce Clutch, Accel 8.8 Wires, no kat, straight exhaust, TB bypass (200HP), Jeff-M cro$$over ;)
Jay Warfel
Muncie, IN
2nd TGP "TestBed" 90, Black JeffM TG160 & X-over, ractive filter, 15.21 @ 90 mph
2003 Sonic Yellow Subaru Impreza WRX  Turbo XS Stage 3
Perrin GT35R, 2.5 STi Block, JDM 6 speed swap underway.
Goal: 450 AWHP, mid 11's.

95GTP

Ill try that along with cleaning the ground connection to the alt/battery as soon as it stops snowing and raining here.

no1kicker

Idle relearn, just disconnect the battery?  Or what else is required.


former owner of a 1990 Grand Prix STE Turbo

jheiv

there have been a couple methods out there... this seems to work for me...

http://www.60degreev6.com/index.php?p=pages&pid=74
1989 Red TGP
Mods: KYB-GR2 Struts and Mounts, Prior PMIII, K&N Filter, K&N Breather, 8.5 mm Wires
Upcoming: TopGun Chip, Coils, X-Over

95GTP

The IAC relearn seemed to help some.  It still does the surge but not as bad.

dbtk2

Quote from: jheivthere have been a couple methods out there... this seems to work for me...

http://www.60degreev6.com/index.php?p=pages&pid=74

That doesn't work when your car is a POS like mine and won't idle no matter what unless my foot is on the gas!

Quote(damn thing wont start in neutral have to go all the way to park

Mine does the same thing and it REALLY pisses me off.  One day I accidentially got it to start in neutral (stalled when I was backing out of the driveway and pulled it back instead of forward by accident) and then for about a week after that it would start in neutral, but since then it will only start in park again...really really odd.

Shawn
90 Maroon GP STE 3.1 I/C Turbo - SOLD!  :(
14.695 @ 94.49 w/2.228 60'
99 Green GP GT
9.75:1|K&N|160 tstat|no cat/ubend/res|ALT UD|Shift Kit|XPZ cam|Ported M90/TB/LIM/Heads|Powertuned|Pacesetters|42lb/hr|Stg 2 I/C|MPS|2.45"|ELEC WP|Zex 75/100/125|Walbro|ZZP IS|15/16"|AR103|Rollmaster|8 rib|MLS .052|ARP Head Studs|Billet FP|Alum Cradle
11.9912 @ 112.99 w/1.729 60', 347whp/417wtq on 93 octane/mustang dyno.