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post #1 of (permalink) Old 12-27-2000, 09:21 AM
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Added MSD 6a / check engine light

90 302 efi/bored 60 over / K&N filter / crane 1:6 rocker rollers / electric fan / approx 5000 miles on motor new fuel pump-pressure regulator-fuel injectors-alternator/

I just added a msd 6a ignition / msd blaster tfi coil / holly tfi module / msd heli-core plug wires.
when i really get into it the check engine light comes on just prior to shift point. Could i be running lean?
also should i get a different alternator that puts out more, since the output drops when engine is idealing?

Since it's been sub-zero here in kansas i haven't wanted to get out and run a code scan to see what the computer is saying.
Any ideas would be appreciated.

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post #2 of (permalink) Old 01-04-2001, 07:07 PM
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Re: Check engine light

Pull the codes; the light may have nothing to do with the ignition, or you may be ruining the engine. That's why the light comes on. Check it.

83 Custom w/95 4.9L EFI, 78 NP435, 83 NP208, 83 D44IFS 3.07, 87 Ford 8.8ABS 3.08, Michelin LTX AT 31x10.50R15
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