1993 2.3L missing after it warmed up.

[Esteban]

My Ranger would start smooth but would start missing badly after it warmed up, usually after about 5 -10 minutes. It would not have any power and would barely stay running. Very frustrating! The CEL was on. I tried to pull the codes with the jumper but I wasn't confident that I counted all the CEL blinks. I bought a cheap code reader at O'Reilly's and it spit out 157, 218, and 222 after I got the pass codes of 111 and 10. I marched down to O'Reilly's and bought a Ignition Control Module and a Mass Air Flow sensor. I disconnected the negative terminal to the battery and replaced both units. I hooked the battery back up and cleared the codes in memory before I started the vehicle. There's a cool little button on the code reader that clears the memory for ya. It started right up and runs great! CEL did not come back. I just thought I would post this to help someone out.

here is the link to the code reader I bought. It was at O'Reilly's for $29.99.
Digital Ford Code Reader (1981 - 1995) - EQUUS PRODUCTS, INC.

[dorman68]

Cool! thanks for the tip.