93 Ford Ranger 3.0 V6 Engine Miss...Please Help

Hello.

I have a 93 Ford Ranger I bought with 61000 miles April of 2005. I now have almost 80,000 on it. Ever since I bought it I noticed an engine miss. It is not constant, sometimes it will do it when it is warm, sometimes cold. But if it doesn't do it cold it will do it warm and vice versa. So far I replaced

Wires - Cap - Rotor - 12 New Plugs - Fuel Filter, Various Fuel Treatments and Injector Cleaners.

I work at a chevy dealer not a ford dealer and i can only scan fords 96 or newer. So i was thinking about taking it to my local ford dealer and having them scan it for 75.00 and then just doing the work myself. Anybody have any clue?? Please help. I can't afford to dump this truck

Hello.

I have a 93 Ford Ranger I bought with 61000 miles April of 2005. I now have almost 80,000 on it. Ever since I bought it I noticed an engine miss. It is not constant, sometimes it will do it when it is warm, sometimes cold. But if it doesn't do it cold it will do it warm and vice versa. So far I replaced

Wires - Cap - Rotor - 12 New Plugs - Fuel Filter, Various Fuel Treatments and Injector Cleaners.

I work at a chevy dealer not a ford dealer and i can only scan fords 96 or newer. So i was thinking about taking it to my local ford dealer and having them scan it for 75.00 and then just doing the work myself. Anybody have any clue?? Please help. I can't afford to dump this truck

There is a procedure for reading the codes on OBD I Ford vehicles without using a scanner. You can get the KOEO and KOER codes by jumpering a pin to ground on your DLC connector. You can use an analog voltmeter to count the sweeps or just count the flashes of the service light to come up with the code number. Here is a link for the procedure...

http://autorepair.about.com/library/ts/obd-i/bl-dtcs-60.htm