DF308 Mercury Comet DTC Code

Mercury Comet Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	Opposite Piston Engine
Engine Air Intake Process :	Supercharged Engine

Your Mercury Comet engine control system detects a problem, the computer stores the diagnostic trouble code DF308 in its memory. To figure out what is wrong with your vehicle you must first extract the DF308 DTC For Mercury Comet.

A good ground connection is also extremely important. DF308 Mercury Comet engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).

DF308 Mercury Comet DTC Meaning

D	Chassis Code - Problem is controller area network wiring bus and modules.
F	SAE - Generic
3	IC Module 4X Ref Circuit Intermittent, No Pulses
0	Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
8	Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit

If your vehicle failed a DF308 Mercury Comet test and the DF308 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses DF308 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look DF308 DTC For Mercury Comet: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.