Question about 2002 Hyundai Santa Fe

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2002 hyundai santa fe

Customers car was driving down the street when they heard a "pop" and the car suddenly stalled. When I arrived, I noticed the fuel pump was not priming. I found that the fuel safety cut off switch had tripped. I reset it and the fuel pump started working but the car still would not start. I towed to my shop and it has codes for CMP sensor circuit failure. I noticed the CKP sensor was totally cooked and falling a part. So, I replaced both of them. The car also has a code for MAF sensor low voltage. I check for clogged air filter, cleaned the already impeccably clean MAF sensor.. no change. Also getting a code for Bank 1 catalytic below efficiency. and bank 1 sensor 2 beyond maximum threshold. I have yet to do anything about them because, except when COMPLETELY clogged.. I doubt that a cat would prevent a car from starting. I'm not sure where to go from here.. I am not familiar with any procedure on how to test the MAF, if there is a test. I checked wiring for wear/corrosion, none to be found. A friend of mine with a Tiburon had the same issue with his CKP, ended up having to replace the toothed wheel that the sensor reads along with the sensor.. I don't understand how a toothed wheel inside the crank case could ever become damaged/need to be replaced but, if it happens, it happens.

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  • Nicolas Hardcastle
    Nicolas Hardcastle Apr 08, 2014

    So, I preplaced CKP, CMP sensors and bank 1 cat. No start. The coils are not producing any spark. Where do I go from here?

  • Nicolas Hardcastle
    Nicolas Hardcastle Apr 08, 2014

    I found something about "igntion failure sensor" but I can't find a picture of it on the 2.7ltr V6

  • Nicolas Hardcastle
    Nicolas Hardcastle Apr 08, 2014

    I measured the resistance of the coils.. my service manual says they should measure ~.6ohms on the primary winding.. I was reading 2.6-4ohms depending on the coil. the green wire connecting to the coils is getting battery voltage when the ignition is turned to the on position. so I replaced the coils. Still getting no spark.



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  • 59 Answers

Sounds like the immobilizer has cut out the system. Also it could be the computer box has failed. Need to take it to the agents to put on there machine (GDS) to maybe code the keys

Posted on May 11, 2014


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Posted on Jan 02, 2017

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SOURCE: 2002 Hyundai Sonata code reads P0430 what does this mean Catalyst System Efficiency Below Threshold (Bank 2)

That's a pretty RELIABLE code!... You have a bad CAT (Catalytic Converter). Trust it to be accurate. The conditions which set this code is when the Upstream O2 sensor's data/signal is compared to the Downstream sensor's data/signal... when they are nearly identical, that's when this code is set (unless you have an exhaust leak).. If there is an exhaust leak.. repair it, then retest/recheck.

Posted on May 31, 2009

  • 165 Answers

SOURCE: what can cause a 2005

i would check ur fuses that supply voltage to ur o2 sensors, their in the fuse box and usually r labeled o2 sensr. sounds like the o2 sensrs dont have power

Posted on Apr 09, 2011

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1 Answer

How do I replace fog lights on my 2002 Hyundai Santa Fe?

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You might have lost your lower gears, I would have someone look at it to see if your gears are gone or if its just a faulty sensor.

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1 Answer

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