Question about Cars & Trucks

Open Question

1994 Ford F-150 4.9 code dtc:543 - Cars & Trucks

Posted by Anonymous on

Ad

5 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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 202 Answers

SOURCE: obd 1 code 543. how to fix?

543 Ford Fuel pump secondary circuit faultit's a code for the fuel pump secondary curcuit. you may need a fuel pump relay or a fuel pump. also check the fuel pump shutoff switch. you also didnt mention an issue if any your having because of this

Posted on Nov 16, 2009

Ad
  • 752 Answers

SOURCE: scanner codes 335, 543 on 1994 ford ranger 2.3L

335 crank shaft sensor,543 (Mem) Fuel pump relay or battery power feed was open.PCM is located under the instrument panel, is the brain of the EEC system

Posted on Feb 06, 2010

Danniboi
  • 1098 Answers

SOURCE: I have a 1993 Ford

Hi

172 is the lanbda sensor for the exhaust emmisions that is a simple unbolt and remove the wire plug job, easy to do. the second code 412 maf sensoror air mass sensor, this could be tricky because the first code 172 could cause this second code by the egine trying to compensate, also though alternatively the second code can cause the first by again compensating or forcing too much air to keep the idle high.

My betting is that the air sensor or maf sensor is at fault as this would cause the car to want more air and more fuel thus pushing emmisions high causing the emmisions code or lambda.

Also though it could be neither, if you have a split air pipe or a poor seal on any air intake pipe or from the air box say there was no air filter then that would again cause too much air + fuel. Have a good look at all your air pipes and vacuum pipes any of these with even pin holes in may cause the issue.

Lastly they are both cheap parts for a ford so after you check the pipes if there is no rips tears etc then change them both, the car wil run better and you will save fuel as well.

Hope this helps
Regards

Dan

Posted on Dec 28, 2010

  • 1243 Answers

SOURCE: can't find fuel pump relay on 1994 f-150 ford pick up

in the under hood fuse box on the left fender.

Posted on Jun 12, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Ford dtc codes


white porcelain on plugs means lean mixture. run the fault codes and check for MAP/MAF/VAF sensors --HO2s and O2 sensor problems .

Sep 08, 2014 | 1994 Ford Econoline

1 Answer

1994 ford bronco 5.0 ltr


May be something in the fuel pump.
Check out this site
http://www.troublecodes.net/Ford/

Mar 29, 2013 | 1994 Ford Bronco

1 Answer

I need to know what code p0506 means on a 2005 ford f-150


A P0506 DTC trouble code may be caused by a

  • Damaged/failed/dirty throttle body. clean throttle body, especially around the throttle plate where carbon gets on it. erase the code and see if it stays out. if not call the ford garage, there may be a TSB for this code. good-day!
  • Mar 03, 2012 | 2005 Ford F-150

    1 Answer

    1994 Chevrolet Camero "code 18" need to know what


    This trouble code could be 3 different possibilities...

    Code 18 can be any of the following:

    DTC 18 ABS Enable Relay Coil Circuit Shorted To Battery
    DTC 18 Injector Circuit Malfuntion
    DTC 18 Discriminating Sensor Interconnect Open (Supplemental Inflatable Restraints)

    Hope this helps...

    Sep 14, 2011 | 1994 Chevrolet Camaro

    1 Answer

    Scanner codes 335, 543 on 1994 ford ranger 2.3L 5spd manual w a/c. also where is the Powertrain contro module (PCM) located? NOT a supercab, regular


    335 crank shaft sensor,543 (Mem) Fuel pump relay or battery power feed was open.PCM is located under the instrument panel, is the brain of the EEC system

    Feb 06, 2010 | 1994 Ford Ranger Supercab

    1 Answer

    Yes my truck is 1998 ford f 150 4.2 an i have code po174






    DTC code p0174 means "System too lean (Bank 1)"

    Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exahust). On V6/V8/V10 engines



    , Bank 2 is generally the side of the engine that doesn't have cylinder #1.

    Jan 09, 2010 | 1999 Ford Windstar

    1 Answer

    Obd 1 code 543. how to fix? 1994 ford explorer limited


    543 Ford Fuel pump secondary circuit faultit's a code for the fuel pump secondary curcuit. you may need a fuel pump relay or a fuel pump. also check the fuel pump shutoff switch. you also didnt mention an issue if any your having because of this

    Nov 16, 2009 | 1994 Ford Explorer Limited

    1 Answer

    2006 ford f150 dtc codes 401, 402, 607


    It is very possiable that you may be getting a false code that will reocure till egr problems are repaired. The ecu may be trying to compensate for egr problems causing it to send the 607 code

    Oct 02, 2009 | 2006 Ford F-150

    1 Answer

    Code P0401


    Probably your EGR valve but check out this link with steps and procedures:

    http://www.geocities.com/dtmcbride/home_garden/auto/dtc/p0401.html

    Jun 11, 2009 | 1998 Ford F150 Regular Cab

    Not finding what you are looking for?
    Cars & Trucks Logo

    Related Topics:

    62 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Cars & Trucks Experts

    yadayada
    yadayada

    Level 3 Expert

    76673 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22219 Answers

    Randy Ohler

    Level 3 Expert

    14585 Answers

    Are you a Car and Truck Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...