p1506 is an IAC (Idle Air Control) error code that comes on when your on-board computer senses an undesired Idle RPM.
Trouble code P1506 means: Idle Air Control Overspeed Error
Trouble code P1506 means: Idle Air Control Overspeed Error
Trouble code P1506 means: Idle Air Control Overspeed Error
Code P1506 - Idle air control valve over speed error
P1506 - Idle Air Control System At Adaptive ClipCheck for vacuum leaks and clean the throttle body, maybe check the iat and maf sensors.
Trouble code P1506 means: Idle Air Control Overspeed Error
Idle Air Control Overspeed Error
iac valve...idle air control valve
To fix error code P1506 (idle control system RPM higher than expected) on a 2001 Ford Focus 2.0 Zetec, start by inspecting the Idle Air Control (IAC) valve for proper operation; clean or replace it if necessary. Check for vacuum leaks in the intake system or around the throttle body. Additionally, ensure that the throttle position sensor (TPS) is functioning correctly and calibrated. If these steps don’t resolve the issue, consider checking for other underlying problems like a faulty ECU or wiring issues.
Go to NAPA or AutoZone, they will tell you.
That code is an idle air control overspeed error. It means that the engine idle is out of factory specification. Sometimes the Idle Air Control may have carbon built up so clean it and if that does not fix it, replace it.
P0302 is cylinder number two misfire detected.