Your Toyota Denso engine control system detects a problem, the computer stores the diagnostic trouble
code C3499 in its memory.
To figure out what is wrong with your vehicle you must first extract the C3499 DTC For Toyota Denso.
To solve C3499 Toyota Denso 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
C3499 Toyota Denso DTC Meaning
Chassis Code - Problem is controller area network wiring bus and modules.
SAE - Generic
Fuel And Air Metering (Injector Circuit Malfunctions Only)
TP Sensor Learn Not Complete
A/C System High Pressure High Temperature
If your vehicle failed a C3499 Toyota Denso test and the C3499 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 C3499 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 C3499 DTC For Toyota Denso: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.