1991 DODGE DYNASTY TROUBLE CODE 43

  • Tiny
  • alan detrick
  • 1991 Dodge Dynasty

Electrical problem
1991 Dodge Dynasty 6 cyl Front Wheel Drive Automatic 130k miles

code 43 comes up- car dies. Code reader shows ignition coil number 3 circuit. Ok fine, but what is #3 circuit? I suspect crank senser? Wish these manuals were more compleat. Also does this car have an ign coil moduel? Can't find that info anywhere. Thanks for your help, Alan

Tuesday, June 17th, 2008 AT 11:53 AM

8 Answers

  • Tiny
  • merlin2021
  • Expert
  • 17,583 posts

I show cylinder misfire, OR coil circuit. What are the symtoms? No start or misfire in the engine?

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Tuesday, June 17th, 2008 AT 12:53 PM
  • Tiny
  • alan detrick
  • Member

STARTS FINE COLD BUT WILL JUST UP AND STOP AT IDLE AFTER 5-10 MIN. OR IF DRIVING STARTS TO RUN ROUGH AND THEN DIES. HAS TO SET FOR 30 MIN AND WILL RESTART BUT RUNS ERARTIC. SCAN TOOL SHOWS 43 AND CALLS OUT CIRCUIT #3. AS IN ORIGNAL QUESTION, WHAT IS #3, ACTS LIKE CRANK SENSER BUT NOT SURE. SYSTEM DOES NOT HAVE CODE FOR EITHER CRANK OR CAM SENSOR PROBLEM SO IT ALL GOES BACK TO WHAT IS #3. THANKS, ALAN

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Tuesday, June 17th, 2008 AT 3:28 PM
  • Tiny
  • merlin2021
  • Expert
  • 17,583 posts

The code actuall reads #3 primary circuit, so that would be the plug wire is not producing enough spark, change the wires! Agood tune up must be in order.

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Tuesday, June 17th, 2008 AT 5:14 PM
  • Tiny
  • alan detrick
  • Member

PLUG WIRES ARE NOT PRIMARY, THEY ARE SECONDARY CIRCUITS AND THEY WILL NOT MAKE A CAR GO FROM RUNNING FINE TO A COMPLEAT SHUT DOWN AT IDLE. FURTHER MORE THERE IS ONLY 3 SUB LINKS TO CODE 43. SO WHERE WOULD WIRES 4-6 SHOW UP? HERES SOMETHING ELSE IT HAS NEW WIRES AND COIL PACK. NOW WHAT DO YOU THINK?

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Tuesday, June 17th, 2008 AT 5:59 PM
  • Tiny
  • merlin2021
  • Expert
  • 17,583 posts

You need a Chysler DRB II to activate the coil circuits to test em, I will send the info to you, if coils are new, it must be one of the wires, test info on the way!

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Wednesday, June 18th, 2008 AT 3:15 PM
  • Tiny
  • alan detrick
  • Member

THANK YOU FOR YOUR EXTRA EFFORT. LOOKING FORWARD TO ITEM YOU ARE SENDING. ALAN

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Wednesday, June 18th, 2008 AT 6:35 PM
  • Tiny
  • merlin2021
  • Expert
  • 17,583 posts

Let me know how you make out with it Al!

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Thursday, June 19th, 2008 AT 2:56 AM
  • Tiny
  • vipertek
  • Member

You need a flow chart and manual. I have had computers do that same thing in same motors. There are tests avaiable. Good luck I can provide thease charts and diagrams.

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Thursday, January 8th, 2009 AT 8:58 PM

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