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P0507 Diagnostic Trouble Code Discussion for August 2004

Idle Speed Higher Than Expected

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Trouble Ticket Help Requests for DTC P0507
Help Request Posted
1998 Isuzu Hombre S 2.2L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1GGCS1447W
P0507: Idle Air Control System High RPM. ... This truck surges badly at idle, and will stall coming to a stop. It runs good above idle and at cruise. Replaced plugs and wires due to mileage. Cleaned throttle body, removed Iac and cleaned it and passage. Removed EGR, no obvious problem. P0507(high idl...
August 01, 2004