Could my canned tune be causing my battery to rundown?

[oddwraith]

I know this sounds like a stupid question (that usually means that it is a stupid question) but I'm just wondering because after a day or two of not driving the Hawk the battery seems to be dead and it won't start? I still have lights and power but not enough to turn the starter I guess? Could be the starter too I suppose?

But could the pcm cause a module or and other device to stay active when the car is turned off? Or is this simply not possible? Thanks for you advice again guys. Cheers!

[05Z71]

How old is the battery?

[CANUCKPREDATOR]

Do you have a volt meter? Check the battery to see how many volts? Some garages can do a test on the battery to see if it has any amps left to it. You may have volts but no amps.

[05Z71]

I would drive the car to Auto Zone or any other parts store and have them test the battery for you. It only takes a few minutes for them to hook it up and let the battery scanner tell you good or bad.

[oddwraith]

Nah, new battery today, and last year. New alternator last week, new battery side-post connector bolts, new ign. cylinder and keys, and cleaned up all grounds. Had a full sysytem charge/load test, parasitic drain test all to no avail. I'm currently running without the fuses for the headlight motors since I feel that I may have a trouble motor causing drain. It's not closing (flip up) all the way down and I feel like maybe the car doesn't know it's off so it leaves the circuit open or grounded out maybe? EIther way I am in the troubleshooting process at the moment and just wanted to rule out the possibility of my tune affecting this condition? Thanks for the replies guys.

[05Z71]

Try this. Stick your stock tune back in and let it sit for a few days and see if you can get the battery drain to repeat itself without the tune in. I really don't see why the canned tune would be draining your battery, but I guess anything is possible. Rule out these easy things first and then start diving head first into the more complex BS. If for some reason you get a battery drain with the stock tune in then I would go to the dealership and get your pcm reflashed with any updates. They should do it for free because battery drain is reason for a reflash. Just be sure your stock tune is in the car.

[06MonteSS]

a tune wouldn't cause the battery to drain... you have a parasite somewhere suckin' that battery down... electrical gremlins somewhere for sure..

not tune related...