DODGE OBD1 CODES CODE 21

I Have A Code 21 On A 95 Neon, Do You Know What This Is?

I Believe The 12 Means A Code Is About To Be Shown. I Have A 94 Dodge Caravan 3.3l I Believe Its The Sports Edition, I Have Several...

My Car Has Been Acting Up While Driving, It Will Slow Down Like It Was Abt To Die, Last Week I Went To The Mechanic, He Checked The Car...

Very High Idle, Car Can At Times Drive Itself(foot Not On Accelerator). I Get Codes 21 And 25. I Have Changed The Air Idle Motor And The...