Trouble code P2635 means: Fuel pump A - low flow/performance problem
What does obd code P0740 mean
If you are refering to the OBD-II code 791 or P0791 it is refering to the Intermidiate Shaft Speed Sensor Circut A.
This website has all of the OBD codes. http://autorepair.about.com/cs/troubleshooting/l/bl_obd_4.htm
What does a code 212 mean on a OBD 1 mustang
Trouble code P0302 means:Cylinder 2 misfire detected
OBD code P1127 mean Exhaust not warm enough.
o2 sensor
Cylinder #2 misfire detected.
Trouble code P0783 means: 3-4 Shift
Trouble code P0174 means:System too lean (Bank 2)
No if the code has been cleared it will not be stored in memory.
P1017= Ecm internal fault.