Question about Hyundai Motor 2003 Sonata

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I am working on a 2003 hyundai sonnata. it is a no start with codes P0335 and P0732. It has had the cam sensor changed and it helped for a couple of weeks. now no start

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  • john h May 11, 2010

    po335 is knock sensor 1 circuit malfunction either wiring-connector problem or the knock sensor is faulty as for 732 thats a transmission code for gear 2 incorrect ratio (other sensor may have given a bad reading to transmission )

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  • Hyundai Master
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You has cam sensor code and transmission code at the same time.

If there is no slippage on the 2nd gear before while driving then I will spend time on checking the electrical wiring first.

Follow the cam sensor wire and transmission wiring into the interior of the Sonata.

Check for wet carpet spot on driver and passenger foot area.

Clean battery terminals

Check for metal frame to wire contacts,bad wires,corrosion and loose connection to ECU and Trans computer.

(take your time and check the wires end to end)
A helper is a major plus on this kind of job

Clean the electrical contacts with electrical contact cleaner.

Reset the OBDII codes and fire up the car.

If it's an automatic then try to start it in N neutral.

This will rule out a bad neutral safety switch.



Posted on Nov 18, 2009

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  • Hyundai Master
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I sent my solution under clarification request sorry dropped mouse

Posted on Nov 18, 2009

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