B61: From B17 and B18: Control Pressure Too High

From B17 and B18: Control pressure too high (cold/warm control pressure regulator)
When the fault has been rectified proceed with B18 and B19 B14-24: Checking All Pressures

B61



Check that the return line is not blocked
Turn off the ignition.

Unscrew the fuel tank cap to release any overpressure in the tank.

Disconnect the return line from the control pressure regulator. On 1978- models disconnect the line at the fuel distributor as well.

Blow through the line.

Blocked line: clean, replace if necessary.

Clear line: check that the screw holes are not blocked. If OK, test with a new control pressure regulator.

Note! On 1978- models, the fault may also be due to a blocked line pressure regulator in the fuel distributor.