The drainage pipes from upper floors and that from ground floor is not connected together. why ?

- Maintenance ( at least one floor will work)

- Avoid the effect of hydraulic jump.

 The PCM is the Power-train Control Module. It's the computer that pretty much runs the whole show and is very expensive to replace. The P0320 code suggest there is a problem with the Crankshaft Position Sensor (CPS). It can be tested in the vehicle using an OHM meter. With the engine hot and the connector removed from the CPS, reading across terminals A and B on the CPS you should have200 +/-75 OHMs. Any more or less and it needs to be replaced. The P0463 code suggest there could be a short to voltage on the lead between the PCM and the fuel gauge sending unit. Does the fuel gauge appear to be working correctly? If not this one might tough to find as there is a lot of wire between the fuel tank and the PC.

 Hope this helps U out.

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