CHKNHEADSHOT

HEY GUYS I HAVE A 1995 PONTIAC GRANDAM SE 3.1L V6 I WAS DOING SPARK TESTS ON MY COIL PACKS AND NOW MY CAR WILL NOT START WITH THE ALTINATOR PLUGGED IN AS SOON AS YOU UNPLUG IT CAR RUNS GREAT I WENT OUT AND BOUGHT A NEW ONE AND IV HAD IT TESTED AND ITS STILL DOING THE SAME THING IV ALSO REPLACED THE CRANK ANGLE SENSOR AND CAM POSTIONING SENSOR BECAUSE THATS WHAT MY COMPUTER PULLED THE CODE FOR THAT DID NOT HELP I HAVE NO BLOWN FUSES AND IV CHECKED TO MAKE SURE THE WIRES COMMING AND GOING FROM THE ALTINATOR ARE GOOD AND SHORT FREE ANY IDEAS

kevinkpk

So, you can start it with the two wire plug unplugged, and that is the only time it runs? If you start it as stated, does it die when you plug it back in?

CHKNHEADSHOT

no it does not will not stay running about to try to trick the sense wire mabey i will get something any ideas

kevinkpk

What I am asking is with the alternator unplugged will it start? If it does, plugging the plug in, does it stay running or not?

CHKNHEADSHOT

Yes it starts with out it plugged in when it gets plugged in it does not

CHKNHEADSHOT

Yes it starts uplugged then when plugged in it does not and dies

kevinkpk

Do you have a voltmeter? If so, check the voltage with it running, unplugged at the connector, post what you have. A digital vom would be best as you'd not need to know the polarity, as I don't either.

CHKNHEADSHOT

WONT START WITH IT PLUGGED IN I HAVE DONE SOME FURTHER TESTS ( I HAVE UNPLUGGED THE ALTERNATOR 3 PIN CABLE AND JUMPERED WITH ALLIGATOR CLIPS THE SENSE WIRE AND THE RESPONSE WIRE SO I COULD TURN ON THE ALTERNATOR BY CLIPPING THE OTHER END TO THE BATTERY) WITH THAT I STARTED THE CAR WITH IT NOT CLIPPED ON alt off SO CAR IS RUNNING AND I CLIPPED ON THE GO WIRE I HAD RIGGED WHEN THE VOLTS REACHED ABOUT 13V THE CAR WOULD DIE SO I TOOK MY BATTERY CHARGER AND TURN IT ON TOO 75 AMP START 14v THE CAR WOULD NOT START I HAD THE ALT UNPLUGGED FOR THE 75 AMP START IT WAS NOT ON! BUT THE CAR RUNS GREAT WITH NO ALT OR THE 14V FROM THE BATTERY CHARGER!