Trouble Code Crazy
DTC 121 TPS Fault (Which i replaced not even a week ago) During KOEO/KOER
DTC 172 02 Not heated enough bank 1 too lean During KOEO and KOER
DTC 53? Sorry forgot the code but it was Insufficent RPM change during KOER
Sometimes Id also get Not enough Exhuast Recirculation Code (im thinking because its reading too lean) During KOEO
Now the truck runs and drives fine its rough on idle when its cold sometime, but usually no problems. Any Ideas?
Also the truck is a MAP truck if it helps.
As well the previous owner changed the Distrubtor Cap, Spark Plugs and wires. Checked the gaps on plugs all good. I asked him if he made sure the timing was good on the cap he didnt. Hope this helps.
Last edited by Tractorman1215; Jun 16, 2013 at 12:22 PM. Reason: More info



