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Posted on Jun 13, 2017
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I've been getting an ignition sensor failure/faulty connection diagnostic error (P0320) on my 2004 Hyundai Sonata v4 ever since I replaced the ignition coils, plugs and plug wires a few weeks ago. Also, the Tachometer is no longer working. At first I could adjust some of the wires coming out of the coils/plugs to get the symptoms to go away but that no longer works. I visually checked the fuses in the engine compartment and they all looked good. Any suggestions?

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Bill Boyd

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  • Hyundai Master 53,816 Answers
  • Posted on Jun 13, 2017
Bill Boyd
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Code p 0320 refers to crankshaft position sensor (CKP)/ engine speed (RPM) sensor --circuit malfunction===causes wiring---CKP/RPM sensor--ECM
from your statement of moving coil wires and it temporarily fixed the fault , I suspect wiring failure to the tacho( RPM sensor) as the RPM sensor works of coil impulses
by moving wires you may be altering the circuit fault for the CKP sensor
take it to an accredited service center for a proper diagnosis

5 Related Answers

Anonymous

  • 2 Answers
  • Posted on Oct 04, 2008

SOURCE: 2005 hyundai sonata

first try a new light ,maybe both of your low beams are bad ,check fuses.maybe your dimmer switch is bad

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Anonymous

  • 98 Answers
  • Posted on Jul 19, 2009

SOURCE: which cylinder in #6 on a 2006 V6 hyundai sonata

Autozone.com says that for this vehicle the firing order is 1-2-3-4-5-6 and the set-up is 2/1 4/3 6/5 meaning that the #6 cylinder is far right on the back. It goes #1 #3 and #5 in the front and #2 #4 and #6 in the back.

ghost45

PAUL MC G

  • 1280 Answers
  • Posted on Sep 07, 2009

SOURCE: Tachometer stopped working completely but all

It's very UNLIKELY the jumpstart had anything to do with it, unless you accidentally connected the battery in 'reverse polarity', which causes the electrical system voltages to 'DROP' instantaneously to near zero volts and create 'current spiking' in all active circuits. Nevertheless, the microcomp in the instrument cluster which drives the TACH has protective curcuits. The only solutions are to eliminate any problems in the wiring between the ECM/PCM and the instrument cluster, and bench test the tach to determine if it's working properly. Process of elimination - if wiring is ok and the Tach is ok, then the problem is in the ECM/PCM.




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Anonymous

  • 31 Answers
  • Posted on Jan 23, 2010

SOURCE: 2002 Hyundai Sonata Mis-fire on cyl 3 and 3 other error codes.

P1505 and P1507 refer to the Idle Speed Actuator

impatient1

Scott McDonald

  • 68 Answers
  • Posted on Jan 30, 2010

SOURCE: wanto change heater switch in Hyundai sonata model 2001

They can be replaced but are expensive at the dealership. I found the whole "climate control assembly" on eBay for about $40. delivered. The bezel has only snaps holding it in place. you can carefully remove it with a hook type screwdriver. Start near the radio and pull straight out with maybe 15 pounds of pulling force. Reassembly is very easy. good luck.

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