So basically everything is back running good....... except now i got the CEL on....Ran it to work, and it came on....Im running 15 deg BTDC, checked the codes 26, running too rich....... how on earth can i run 15 deg BTDC and STILL run rich? at 15 deg its a WHOLE lot more peppy than at 10, at 10 its super doggy......... anyone wanna chime in? im thinking about going with a new Water Temp Sensor, see if that helps, only 21$ and if i remember correctly, when i put it back together, a coolant leak was coming from around that area..................................

 

Things to check: O2 sensor, AFM, TPS. You may be on the right track with the coolant temp sensor. The ECM may not know that the engine has warmed up, and therefore not going into closed loop.

Mike in AR