P382E Code:

OBD-II Diagnostic Powertrain (P) Trouble Code

Possible Cause

The reason for P382E the speedometer may fluctuate wildly or fail to operate, the engine may stall when coming to a stop, engine misfire, sag, stall, or hesitation, a stored code, and possibly an illuminated service engine soon lamp.

Common Symptoms

  1. There are several tools which will be instrumental in attempting to successfully diagnose the conditions which contribute to this code being stored
  2. This signal is systematically forwarded to affected control modules that utilize the data to accomplish various other tasks
  3. A scanner (or code reader) and a digital volt/ohmmeter will be required to successfully diagnose this code. Virtually every vehicle (with an automatic transmission) produced since the mid-eighties is equipped with some type of computer controlled automatic transmission system
  4. As exhaust temperature decreases (with the engine off), circuit resistance increases and the feedback voltage signal to the PCM decreases

Similar Problems

Computer And Auxiliary Outputs
Exhaust Gas Recirculation System Valve 1
TFP Valve Position Switch-Drive Without Drive Ratio

P382E Troubleshooting

If this is the case with the code, you will be hearing very loud noises, like explosions, from the rear of the vehicle upon acceleration. Firstly check the carburetor to ensure that the fuel and air combination are properly balanced. If these settings are correct, then thoroughly inspect the distributor cap for any cracks or hairline splits, as this can produce a backfire. Move on to the spark plugs and ensure that they are clean and undamaged and inspect the engine gaskets for any sign of damage, as they are responsible for ensuring the correct gas exchange within the engine. P382E OBD2 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.

How to turn off P382E check engine light ?

There are two ways to turn off the check engine light:

A repair technician can do so once repairs have been made.
The OBD II can automatically turn it off when it fails to detect the problem after several diagnostic cycles.

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