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Home >> Ford >> 1990 >> Probe LX, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.0L >> Test H - Fuel Control >> For All Others

For All Others

Measure resistance between test pin No. 49 at the breakout box and battery negative terminal.

On all above vehicles, measure resistance between test pin No. 29 at the breakout box and HEGO SIGNAL at the vehicle harness connector.