I've look and read some different things but when it gets down to it this code just won't go away. I just don't get it. this is a 2002 ram 1500 4.7L automatic now my first codes were P0505 IAC, P0601 Fault memory sum and finally P0121 tps sig. Now i replaced the spark plugs wire's, Plugs, TPS, IAC and still this code remains.
Whats so funny about this is that even when i clear this code it comes right back in twenty mins. after changing everything the truck runs fine but before it kept stalling. now i got this code returning can anyone help????
