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Re: 4.6L "light load" misfire
For what it's worth, I've been digging more around the internet. It seems alot of people who have this error do infact have some sort of weak coil/COP or an MAF issue.
I checked my MAF readings in drive and neutral idles and the values seemed higher than what they should have. However since this is a Motorcraft 80mm MAF used on trucks and Mustangs, I can't say for sure that this is the problem. The readings I was TOLD I should get is around 0.65v in drive idle. I am getting 0.915v in drive idle.
I asked my tuner to see if this is expected and taken account for in his tune.
In addition, I also opted to get a set of 8 Accel COPs from Amazon. I know they don't increase power or efficiency as some people claim., but they were a good deal and I am uncertain that my old, tired COPs are the problem or not and want to eliminate more possibilities.
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2000 Mercury Grand Marquis LS - 119k / 14.89s @ 92.11MPH [ pictures | videos ]
> Dual Flowmaster Delta 40s / J-Mod / PI Intake Manifold & Cams / Marauder Air Box & 80mm MAF / 3.55 Trac-Lok
> Bumper Tuck / Steeda UD Pulleys / CVPI Zip Tube / Ported & Polished Plenum / BBK 70mm TB
> BOC 93 Octane Tune / Headlight Relay Upgrade / 17mm rear stabilizer bar / Heinous Aluminum Billet Rear Control Arms
> CVPI aluminum driveshaft
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