What code is logged?

Is this the 8v or 16V?

The 16V seems to have problems re the EGR valve. Can be either the pipe work from the EGR valve being blocked with crud or the EGR valve itself sticking. Usually logs "insufficient flow" when on a long overrun (hence taking a few days). If the valve sticks shut then will still run fine if the vlave sticks open then tickover will be affected.

Also check the oil breather pipes etc not forgetting the one buried inside the air filter. If blocked usually also greatly increases oil consumption as the engine becomes pressurized forcing oil past the valve seals/stems.

What code is logged?

Is this the 8v or 16V?

The 16V seems to have problems re the EGR valve. Can be either the pipe work from the EGR valve being blocked with crud or the EGR valve itself sticking. Usually logs "insufficient flow" when on a long overrun (hence taking a few days). If the valve sticks shut then will still run fine if the vlave sticks open then tickover will be affected.

Also check the oil breather pipes etc not forgetting the one buried inside the air filter. If blocked usually also greatly increases oil consumption as the engine becomes pressurized forcing oil past the valve seals/stems.

Thank You

I will try that

Chris

Hi again

The Diag code is 16554

Fuel trim bank 1 malfunction Po170 internitant.

The engine is 8valve.

Any more suggestions please

Thank You

Chris