04-10-2009, 02:20 AM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Not Ranked
Jeff,
Can you look at what settings you have under ECU Programming/Engine/Oxygen Sensor Control Setup?
There are target parameters versus tps (1/100th volt) and "Throttle position to go open loop".
At steady throttle cruise, the oxygen compensation could be pulling fuel out to the point of a light throttle surge.
You can also see this on the AChart data logger.
Naturally don't ask the logger for everything.
I used to look at coolant, air, rpm, tps, O2, O2 compensation, map, accel volume and time, injection volume and time.
__________________
Gary
Gold Certified Holden Technician
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