91 F150 4.9 Missing
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91 F150 4.9 Missing
I've been fighting this for a while. It misses under any type of load but seems to idle smoothly. No scanned codes other than 11. Plugs all match in discoloration (light tan). I've replaced coil, rotor, cap, wires and plugs. The miss comes and goes (could be here for 3 days then gone for a day). It does it on either tank wether they are full or low. Fuel filter replaced. Measured fuel flow is correct. Fuel pressure reads 52psi KOEO, 46 at idle and 52 under load. 110,000 miles. Any suggestions would be appreciated.
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Thanks ...
Ray
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Thanks ...
Ray
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87_f150_5oh
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