Would a bad charging system cause driving prob?

[black g50]

Hunting my bucking,surging,lack of power problems once fully warmed.Every thing I can think of has been replaced.Main self check says ok,trans check came back with (d)battery low.Alt replaced around(09),battery in Dec.Searched on here and google,but no mention of alt.Car starts fine,no dim lights,sometimes tach needle jumps at red lights.Any thoughts? One more thing how long does seat heater run with car off?

[Ozzie]

I noticed you didn't mention anything about the MAF sensor.
Have you checked that?

[maxnix]

Seat heater does not run with car off. OEM alternator or third party rebuild? Lots of problems with the latter.

[Q451990]

Definitely sounds like the MAF to me.

That low battery code gets stored in the A/T Check memory for a while... Run it a few times to see if it persists.

Heath

[cientortas]

I haven't posted here in a while, but I am experiencing something similar all of a sudden. What is your voltage at the battery at idle and at 2000 rpm? Mine seemed a little low at idle, 13.1v, so I think my alternator might going south...could also be a bad ground.

I'm not sure if this would cause the issues, but worth correcting regardless.

[Q451990]

13.1V is low at idle. Should be around 14.2-14.4. I would get your alternator and battery tested... if it's just the battery, the extra load on the alternator could take it down with it...

Heath

[black g50]

I noticed you didn't mention anything about the MAF sensor.
Have you checked that?

Yes maf changed.