[Joey]

no codes are displayed and I used an OBD II scanner also no codes. the scanner is good (I hooked it to the truck and it worked). so the i held in the trip button on the PT, turned the key to "on", and it looked like a test of some sort was going on. no code came up, but this is what was displayed in the odometer: sw ver 88, can 430, then lin ver 429. i was confused because some of these numbers matched my trip miles, so i don't think their codes. ??? i cleaned the maf, replaced air filter and added some fuel cleaner and it ran great. after 100 miles, cel light came on again and started putting. tonight i put on a new gas cap, thinking that maybe there just isn't a code for a faulty cap. any ideas?