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1998 ford 4.2 engine codes p1506 and p0303 - Cars & Trucks

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 116 Answers

SOURCE: 98 E-250 Rough Idle; codes p0156,p1131,p1151,p0301,p0171,p0174+

po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes

Posted on Dec 15, 2008

localwonder
  • 6784 Answers

SOURCE: 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:)

Posted on Apr 25, 2009

  • 117 Answers

SOURCE: 1998 saturn sc2 P0303 code just came up. already

p303 is a cylinder 3 missfire I woul first check the coil and then the ingnition module, Then if this dont work you could have a bad injector. If after testing and still no fix you should check the compression in that cyl.

Posted on Jul 09, 2009

techbuster
  • 5081 Answers

SOURCE: On a ford f-150 engine code P0303 what is the

A P0303 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #3.

Symptoms may include:

  • the engine may be harder to start
  • the engine may stumble / stumble, and/or hesitate
  • other symptoms may also be present

A code P0303 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer

If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs).

Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced.

Posted on Apr 24, 2010

saailer
  • 1868 Answers

SOURCE: how to fix problem with cod P1506 Ford explower

Hello! The Idle Air Control (IAC) is setting P1506...Idle is to high...Other problems can cause the idle to over speed...It isn't the IAC in many instances...A vacuum leak is #1...The vehicle has some years on it...Go over the vacuum lines and look for weak collapsed lines, broken, or poorly seated...A defective PCV valve is #2...If it hasn't been changed in awhile it's due...Base idle should be 780 in neutral...If # 1 and #2 prove to be OK I'll take it from there...

Guru.............Saailer

Posted on Aug 20, 2010

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1 Answer

Ford engine code p1506


Over speed code need to replace the IAC,check for vacuum leak(s),clean the throttle body,disconnect the negative terminal to the battery for 3 minutes then reconnect that may clear the code

Apr 23, 2014 | 1998 Ford F150 Regular Cab

1 Answer

Why does my ford taurus idle high code P1506


The code is for the idle air control valve which controls idle speed.
The problem could be a faulty control valve, or a vac leak which is letting in air to the intake and bypassing the control valve.

Jan 19, 2013 | 2000 Ford Taurus

1 Answer

I have a code p0303 misfire cyl 3 , ford says bad injector. I bought a new one switched it. Still p0303 ,took it back to Ford they still said bad injector. I swaped from cyl 1 to cyl 3 . Still p0303 ,it...


Three sensors need checking/replacing
MAF sensor(mass airflow sensor)
ECM (engine control module)
ECT (engine coolant temp sensor)
Engine control module sounds good

Aug 08, 2011 | 2000 Ford Expedition

1 Answer

I have 8 throuble codes p0743,p1537,p1504,p0133,p0420,p0113,p0122,p1506,please help i don't know what to do to windstar 98 3.8


P1537

Intake Manifold Runner Control Stuck Open


P1504

Intake Air Control circuit malfunction


P1506

Idle Air Control Over Speed Error


P0112 Intake Air Temperature Circuit Low Input


P0113 Intake Air Temperature Circuit High Input


P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)


P0420 Catalyst System Efficiency Below Threshold (Bank 1)


P0743 Torque Converter Clutch Circuit Electrical



I hate to hear you are havine so much trouble. These are a basic descrition of each of the codes.


If each of these codes are active, i would imagine you windstar isn

Jun 16, 2011 | 1998 Ford Windstar

1 Answer

Code p1506


P1506 FORD - Idle Air Control Over Speed Error

Mar 30, 2011 | 1998 Ford Explorer

4 Answers

How to fix problem with cod P1506 Ford explower 1998


Hello! The Idle Air Control (IAC) is setting P1506...Idle is to high...Other problems can cause the idle to over speed...It isn't the IAC in many instances...A vacuum leak is #1...The vehicle has some years on it...Go over the vacuum lines and look for weak collapsed lines, broken, or poorly seated...A defective PCV valve is #2...If it hasn't been changed in awhile it's due...Base idle should be 780 in neutral...If # 1 and #2 prove to be OK I'll take it from there...

Guru.............Saailer

Aug 19, 2010 | 1998 Ford Explorer

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

2 Answers

P0302 #2 cylinder miss fire code. Replaced plugs and wires but at 40 mph runs very rough. Idles smoothly but not when put in gear.


I have a 1999 ford escort 2.0, its got a miss on cylinder 3 and 4. I changed the wires and the coil pack but its still missing. When scanned I get code p1506, p0303 and p0304

Jan 02, 2010 | 2000 Ford Windstar

2 Answers

1998 saturn sc2 P0303 code just came up. already


p303 is a cylinder 3 missfire I woul first check the coil and then the ingnition module, Then if this dont work you could have a bad injector. If after testing and still no fix you should check the compression in that cyl.

Jul 09, 2009 | 1998 Saturn SL

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