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Old 10-02-2004, 07:37 PM   #1
Jake
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Disconnecting battery

Have you done modifications to your engine and forgot to disconnect/connect your battery afterwards; re-booting your cars computer?
By doing so, it made a significant difference in engine smoothness during acceleration. Also, that dip in torque from 3300-3800 is now history.
The only engine mods I have are Cool-air intake and Sun's HGS/HVS.

This event started when my engine check light came on. However, the engine was seemingly running fine. I called Ford service for suggestions after tips from owners manual didn't work.
I asked them if I should try to disconnect/reconnect my battery and see if the light goes out, and stays out, before I bring it in. (I'd read that sometimes bad gas or a loose gas cap can trigger the check engine light and that the prob is temporary.) Ford service agreed that I should try that before bringing it in.

Well, it worked but what I didn't expect was a better running engine with better throttle response and more torque down low. Then I realized I'd never disconnected my battery before after my engine mods.

Just do it!


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Last edited by Jake; 10-03-2004 at 01:36 AM.
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Old 10-02-2004, 08:28 PM   #2
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interesting...now that your NIKE I think you might have a lawsuit commin ;) j/k...I wonder if it works the same for all cars cause then I'll have to tell my friend mike about that with his ser specv and see if it works...
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Old 10-02-2004, 11:34 PM   #3
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i just put on a header a few days a go and i disconnected the battery it did make a noticable diff disconicting the computer i had an intake and wires and coil on before i disconnected the battery much smoother with the mods
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Old 10-03-2004, 12:31 PM   #4
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Yeah, it's a good idea to disconnect the battery when doing any engine mod. The computer needs to relearn itself and adjust to the mod you just added.
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Old 10-04-2004, 08:25 AM   #5
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I always disconnect the battery when working on the engine, safey first, and besides watching your buddy fry his entire electrical system is funny it costs a lot of money to fix.
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Old 10-04-2004, 08:34 AM   #6
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Disconnect and run for a bit, say ten miles
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