running rich and cant work out why

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drew2002
Posts: 1
Joined: Wed Jul 29, 2015 4:49 am

running rich and cant work out why

Post by drew2002 »

Hi
I have a Australian ford courier 2.6 petrol using ABD1
Its running rich at around 9 to 10 AFR
I have swapped out all the sensors ,injectors,fuel reg ,thermostat,throttle body,Airflow sensor, checked the o2 sensor which reads up to .8 volts.
only thing left is the ecu and fuel pump.
The only time i got the AFR right is after it ran out of fuel and put some more in and restarted. The AFR came good, i could change it to what ever i liked by an adjustment screw in the airflow sensor.
After shutting down and restarting the rich condition returned and have been unable to get work out what is going on.
There are no Fault codes

Any idea what it could be?
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