496HO PCM Reprgramming???
06-06-2005, 01:39 AM
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496HO PCM Reprgramming???
Has anyone out there had there PCM reprogrammed on a stock 496HO motor? The soot on the back is just driving me crazy and just wondering if this helped at all. I've tried higher and lower octane gas with no relief. Was there any additional performance gains with the reprogramming? Thanks
06-06-2005, 08:42 AM
#2
Re: 496HO PCM Reprgramming???
Originally Posted by FOUNTAINATLAST
Has anyone out there had there PCM reprogrammed on a stock 496HO motor? The soot on the back is just driving me crazy and just wondering if this helped at all. I've tried higher and lower octane gas with no relief. Was there any additional performance gains with the reprogramming? Thanks
It's gone
06-06-2005, 08:51 AM
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Re: 496HO PCM Reprgramming???
I have seen Mercury reprogram the PCM for this problem and other minor calibration issues. Local dealer can't but they send it away to regional tech guy who has the software and code.
06-06-2005, 10:19 AM
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Re: 496HO PCM Reprgramming???
They didn't reprogram mine, just sent me a new one. I have 5% of the soot I used to. By the way I was out of warranty when they did it. Thanks merc on this one.JC
