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C2821 Engine Trouble Code

Meaning of C2821 engine trouble code is a kind of chassis trouble code and when the check engine light comes C2821 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

C2821 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for C2821 code is occuring now you should check C2821 repair processes.
Now don't ask yourself; What should you do with C2821 code ?
The solution is here :

C2821 Possible Solution:

C2821 Engine

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.

C2821 Code Meaning :

C 2 8 2 1
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Fuel And Air Metering (Injector Circuit Malfunctions Only) Engine Oil Temperature Sensor Malfunction Turbocharger Boost Sensor A Circuit Low Crankshaft Position Sensor A Circuit Low Input

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

C2821 OBD-II Diagnostic Chassis (C) Trouble Code Description

C2821 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For C2821 Code

The reason of C2821 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

C2821 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.