what does the flash code 3-4 mean for 1991 mercury capri

1991 MERCURY CAPRI
150,000 MILES
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JONATHON
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what does the flash code 3-4 mean for 1991 mercury capri
Feb 26, 2012 at 6:09 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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DRCRANKNWRENCH
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That translates to "Idle Speed Control". More than likely the Idle Air Control Valve, IACV, has failed. It is generally located on the intake manifold near the throttle body.
Feb 26, 2012 at 6:18 PM
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