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The mkiv Supra Owners Club

Possible fueling prob


Adam Kindness

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Have you got a stock ECU?

 

Check your OX1 sensor's voltage. Get a multimeter and connect it to the battery and the OX1 diagnostics port under the diagnostics cover next to the dip stick.

 

It shouldn't be a steady figure as you apply the throttle it should jump around between 0.01 and .8-.9, well that's what mine does.

 

Brian Duff's knackered one just read 0.03 no matter how much throttle was applied.

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