P3840 Packard Executive DTC Code

Packard Executive Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	Opposite Piston Engine
Engine Air Intake Process :	Naturally Aspirated

Your Packard Executive engine control system detects a problem, the computer stores the diagnostic trouble code P3840 in its memory. To figure out what is wrong with your vehicle you must first extract the P3840 DTC For Packard Executive.

A good ground connection is also extremely important. P3840 Packard Executive 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).

P3840 Packard Executive DTC Meaning

P	Powertrain Code - Problem is related engine, transmission and emissions systems.
3	SAE - Generic
8	Accelerator Pedal Position (APP) Sensor 1 Performance
4	Control Module Throttle Actuator Position Performance
0	Transmission Engaged At High Throttle Angle

If your vehicle failed a P3840 Packard Executive test and the P3840 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 P3840 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 P3840 DTC For Packard Executive: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.