DTC P1505 OLDSMOBILE

04.11.2025

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Vehicle engine and/or automatic transmission

Code: P1505 - The Idle Air Control (IAC) system, which manages engine idle speed, is operating at its adaptive limit and may not adjust idle speed properly.

Video for "Error p1505" on YouTube

How to Test Idle Air Control Valve (IAC) | P1507 | P1505 Engine Fault Codes
Poor fuel mileage//poor pick up/DTC--P1505/rough idle/engine power lose.
DTC KIA P1505 Short Explanation
P 1505 / P1507 Active Idle speed control (ISC) actuator low of

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