On my way home tonight the battery volts with the scanmaster were around 10.3-11.4 while driving normal.Just Before I noticed that I was accelerating into traffic and the car started to sputter like a miss or something, This would be related to the low voltage right? It's strange because when I left work my battery volts were high around 14.6 and they were usually around 13.2 or so. I think the alt may be bad It was just rebuilt about 1 1/2years ago. My main concern is the sputtering problem. I just wanted to see if they could be related. Thanks, Jason
Need Help. Low Battery Voltage
- Thread starter Jas89TTA
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Well, my volts are 14.1 with a rebuilt alternator. It could cause sputtering as the fuel pump might not be getting full electrical current thus less fuel. Also, the coil pack might not be getting full power and that could cause the sputtering also.
Jason
Jason
Scott89TTA
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When I 1st got my TTA it did the same sputtered, and even backfired once or twice then would excelerate. Noticed the battery voltage was around 10-11 volts and the car would stall sometimes and then require a jump to start back up. Measured the voltage at the battery with a VOM across the terminals while running and the voltage was only around 10 volts or so...bad charging system (alternator). I installed a new/rebuilt unit and voltage was back up to 14 volts or so and all sputtering, backfires, and stalling was gone. These high voltage ignition systems need at least 12 volts to funtion properly...get below that and they start to act up.
-Scott
-Scott
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While you are at the store, check your battery too.... 
While you are at the store, check your battery too....
True. Not a turbo car but my sisters jeep had a bad alternator. Took out the battery and it would no longer accept a charge.
Jason
Yeah, I was planning on getting one of those Optima Batteries (I think thats right) I just pulled the alt off but I think I found the sputter, I pulled the plugs a few days ago and just now was looking over it all and the #2 wire was not fully on the plug :redface: Opps but the battery volts were at 11.1 this morning on start up.
