Manufacturer Code Charts: 2078

Left path of air filter is dirty or clogged.


Possible cause:

- Air cleaner, left cylinder bank
Affected functions:

- Engine output

-------------------------------------------------

Test 1: Check air filter.

1. Check air filter.
Note

- If the pressure difference at full load from component B28/4 (Pressure sensor downstream of air cleaner, left cylinder bank) to component B28/5 (Pressure sensor downstream of air cleaner, right cylinder bank) is greater than 50 hPa, there may be dirt on the screen upstream of component Air cleaner, left cylinder bank or Air cleaner, right cylinder bank, or in component Air filter.
Possible cause and remedy

- Check air feed to air filter, strainer on air filter and air filter for contamination or clogging, clean if necessary.
End of test