B2421 Engine Trouble Code
Meaning of B2421 engine trouble code is a kind of body trouble code and B2421 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,140 and you can't do it yourself unless you're an experienced mechanic.
B2421 Fault Symptoms :
If one of these reasons for B2421 code is occuring now you should check B2421 repair processes.
Now don't ask yourself; What should you do with B2421 code ?
The solution is here :
B2421 Possible Solution:
Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.
B2421 Code Meaning :
|OBD-II Diagnostic Body (B) Trouble Code For Engine||Fuel And Air Metering (Injector Circuit Malfunctions Only)||O2 Sensor Heater Circuit Malfunction||Turbocharger Boost Sensor A Circuit Low||Crankshaft Position Sensor A Circuit Low Input|
The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.
B2421 OBD-II Diagnostic Body (B) Trouble Code DescriptionB2421 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.
Main reason For B2421 CodeThe reason of B2421 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.
B2421 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.