Engine Flooding (Technical Info)

[Nitro_X]

A few peeps on the boards have mentioned problems with the VE engine becoming flooded.

Thought this might be useful....There's a feature called 'Clear Flood Mode'
This is for VE Commodore 2007 - 2009: BERLINA/CALAIS/OMEGA/SV6/SS/SSV/LUMINA/SPORTWAGON

STARTING MODE

With the ignition ON, before engaging the starter, the engine control module (ECM) energizes the
fuel pump relay for two seconds allowing the fuel pump to build up pressure. The ECM first checks
speed density, then switches to the mass air flow (MAF) sensor. The ECM also uses the engine
coolant temperature (ECT), throttle position (TP), and manifold absolute pressure (MAP) sensors to
determine the proper air/fuel ratio for starting. The ECM controls the amount of fuel delivered in
the starting mode by changing the pulse width of the injectors. This is done by pulsing the injectors
for very short times.


CLEAR FLOOD MODE

If the engine is flooded with fuel during starting and will not start, the Clear Flood Mode can be
manually selected. To select Clear Flood Mode, push the accelerator to wide open throttle (WOT).
With this signal, the ECM will completely turn OFF the injectors and will maintain this stage as long
as the ECM indicates a WOT condition with engine speed below 1,000 RPM.

 

[aunto]

Thank you for the thread mate. For a moment i thought my engine was seized, the NRMA guy fixed it. He also mentioned he have seen quite a few commodores with same issue

 

[All5litres]

Does this work with the 2006 model also?

 

[Nitro_X]

Does this work with the 2006 model also?

ah, not sure about that.

 

[aunto]

If it doesnt work with 2006, you can just hold the starter for 10-15seconds until it starts. Once started there will be some white smoke, dont get scared its normal to burn the excess fuel on the spark plugs