Your Fbs Census engine control system detects a problem, the computer stores the diagnostic trouble
code P3221 in its memory.
To figure out what is wrong with your vehicle you must first extract the P3221 DTC For Fbs Census.
To solve P3221 Fbs Census problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs
P3221 Fbs Census DTC Meaning
Powertrain Code - Problem is related engine, transmission and emissions systems.
SAE - Generic
Computer And Auxiliary Outputs
Cruise Control Servo Indicates Low
PCM Stack Overrun
If your vehicle failed a P3221 Fbs Census test and the P3221 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 P3221 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 P3221 DTC For Fbs Census: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.