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Re: 1990 Ford F150 4.9 missfire
Posted to Technical Theory Forum on 1/22/2007

Is the distributor vane a signature style (one different sized window). Should be. Is #1 in the correct socket in the cap? Else-wise injector timing will be wrong.

KOEO, KOER self-test results maybe? When its missing, what's the timing doing?

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