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Code P1506 overspeed error-What's That? - 626 Mazda Cars & Trucks

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Replaced the air idle control , still check enigen light comes on,cyclender 1 mis fire , new coil ,new plug & wire help

Posted on Nov 17, 2010

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Keeps throwing up trouble codes p1506,p1151,p0302,p0171


Definition of Diagnostic Trouble Code P1506 Audi: Closed Throttle Position Switch Does Not Open/Short to Ground BMW: Idle-Speed Control Valve Opening Solenoid Control Circuit Signal High Ford: Idle Air Control Overspeed Error (see P0507) Jaguar: Idle Air Control System RPM Lower Than Expected - B Bank Kia: IAC Valve Opening Coil Voltage High Lincoln: Idle Air Control Overspeed Error (see P0507) Mazda: Idle Air Control Overspeed Error Mercury: Idle Air Control Overspeed Error (see P0507) Porsche: Throttle Jacking Unit Lower Mechanical Stop, Signal Implausible Volkswagen: Closed Throttle Position Switch Does Not Open/Short to Ground Volvo: IAC Valve Opening Signal
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Definition of Diagnostic Trouble Code P1151 Audi: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded BMW: Oxygen Sensor Heater Circuit Signal Intermittent (Bank 2 Sensor 1) Ford: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Jaguar: Lack of H02S-21 switch, sensor indicates lean Land Rover: Lambda control limit bank 2.Implausible signal/condition Lincoln: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mazda: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Mercury: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Lean Subaru: HO2S-12 Heater Circuit High Input Toyota: Coolant Path Clog Up for Coolant Heat Storage System Volkswagen: Bank1, Long Term Fuel Trim, Range 1 Leanness Lower Limit Exceeded
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Definition of Diagnostic Trouble Code P0302 Category: Powertrain Definition: Cylinder 2 Misfire DetectedNote: This definition of P0302 is applied to all manufacturers
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Definition of Diagnostic Trouble Code P0171 Category: Powertrain Definition: System Too Lean Bank 1Note: This definition of P0171 is applied to all manufacturers

Jun 17, 2015 | Cars & Trucks

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What is p1506 code


The P1506 means Idle Air Control Overspeed Error.
__________
volvo dice

Mar 18, 2013 | 2001 Ford Expedition

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Code p1506


P1506----Idle Air Control (IAC) Overspeed Error

Disconnect the Valve,if you get no change in idle
the valve is stuck or bad

Then clean or replace as required

Near base of throttle body (maybe,got nothing to go by)

You provided no info on vehicle problem
or any vehicle year,engine size nothing

Oct 06, 2012 | Cars & Trucks

2 Answers

Code P1506, 2002 ford taurus wagpn


P1506 Idle Air Control
Overspeed Error

IAC Valve--Bad
Vacuum Leaks
IAC Stuck Open
Failed EAVP System

Disconnect the valve--if little
or no change in RPM,then
Valve is stuck or bad

Mar 16, 2011 | 2000 Ford Taurus

1 Answer

What does code p1506 mean?


P1506 - Idle Air Control (IAC) Overspeed Error This DTC is set when the PCM detects engine idle speed that is greater than the desired rpm.
  • IAC circuit short to GND
  • Damaged IAC valve
Disconnect IAC valve and look for little or no change in engine rpm as an indication of a stuck or damaged valve.

Oct 17, 2010 | 2000 Mercury Sable

2 Answers

98 ford escort check engine light is on the code comes up p1506 how do i fix


This code refers to the Idle Air Control Overspeed Error, I would clean the IAC, and if cleaning does not work I would replace it. It is located directly on top of the throttle valve on the intake manifold. Hope this helps, let me know.

Aug 09, 2010 | 1998 Ford Escort

1 Answer

How do I fix a code p1506 for a ford suv


The code P1506 is for an idle overspeed. This is most likely caused by a sticking idle air control motor loctae don the throttle. When the problems with the high idle happens disconnect the idle air control motor and see if there is little or no change as this would be a sticking motor.

May 28, 2010 | 1995 Chrysler Cirrus

1 Answer

1999 f150 4x4 , p1506


P1506 Idle Air Control Overspeed Error


The Idle Air Control (IAC) valve adjusts the engine idle speed. The valve is located on the side of the throttle body. The valve is controlled by a duty cycle signal from the PCM and allows air to bypass the throttle plate in order to maintain the proper idle speed.


TESTING PROCEDURE


  1. Turn the ignition switch to the OFF position.
  2. Disconnect the wiring harness from the IAC valve.
  3. Measure the resistance between the terminals of the valve.

Due to the diode in the solenoid, place the ohmmeter positive lead on the emphasis type="medium" VPWR/emphasis terminal and the negative lead on the emphasis type="medium" ISC/emphasis terminal.
  1. Resistance should be 6-13 ohms.
  2. If resistance is not within specification, the valve may be faulty.
Please rate and god bless:)

Apr 25, 2009 | 1999 Ford F150 Regular Cab

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