Amphicar 770 P04D4 Code:

OBD-II Diagnostic Powertrain (P) Trouble Code

Trouble In Amphicar 770 P04D4 Possible Cause

To know real cause of Amphicar 770 P04D4 based of if this code is present in your two-wheel drive vehicle, suspect a faulty PCM or programming error. In most four wheel drive applications the four-wheel drive switch is used to switch between two and four wheel drive operation, as well as between low and high ranges

Common Symptoms For Amphicar 770 P04D4

  1. Repair or replace any open, shorted, damaged, or corroded items as required and retest the system to make sure that repairs were successful
  2. As the input shaft is turned (by the engine) the electro magnetic input/turbine speed sensor uses the spaces between the splines to provide voltage signal interruptions in the circuit
  3. As the reluctor ring passes by the electro magnetic sensor, the 5-volt reference signal is completed with the protruding metal surfaces
  4. Several tools will be instrumental in successfully diagnosing this code

Similar Problems

Ignition System Or Misfire
BBV Sensor Circuit Low Voltage
Transmission Control Module Reprogrammable Memory

Amphicar 770 P04D4 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. Amphicar 770 P04D4 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 Amphicar 770 P04D4 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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