Your Packard Twin engine control system detects a problem, the computer stores the diagnostic trouble
code P3089 in its memory.
To figure out what is wrong with your vehicle you must first extract the P3089 DTC For Packard Twin.
A good ground connection is also extremely important. P3089 Packard Twin 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).
P3089 Packard Twin DTC Meaning
Powertrain Code - Problem is related engine, transmission and emissions systems.
SAE - Generic
Crankshaft Position Sensor Circuit Performance
A/C System High Pressure High Temperature
If your vehicle failed a P3089 Packard Twin test and the P3089 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 P3089 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 P3089 DTC For Packard Twin: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.