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What is code 562 2002 hyundai accent

Car sputters under acceleration and idle RPM fluctuates between 500 and 1500 RPM. The code 562 is now coming up. Changed cam sensor, map sensor, alternator, o2 sensor, and computer. still does the same thing. It fires up with no problem but idles funny and sputters under acceleration. Thanks in advance for advice.

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  • Hyundai Master
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562 is not a valid code. You need a letter prefix and one more number 0-9.

Posted on Mar 20, 2014

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6ya6ya
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Posted on Jan 02, 2017

Fixitman909
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SOURCE: 1997 Hyundai Accent no acceleration from idle car

Have timing checked also a compression test GL

Posted on Jun 27, 2009

dttech
  • 4803 Answers

SOURCE: idles ruff when warm, like it has a miss and black

Are there any fault codes in the ECM? No "Check Engine" light on?
Black smoke means it is running rich. You should be getting Rich O2 sensor codes. Running rich is usually caused by the Mass Airflow Sensor. (MAF) This is located in the snorkel that connects the air filter to the throttle body. Make sure that the snorkel hose is properly connected to the sensor housing as well as the throttle body housing. (See Picture)88a7041.gif
Also be sure to check the reference voltage (VREF) to the MAF, MAP and TP sensors. It should be right at 4.8 to 5.2 volts. If it is low, suspect a shorted sensor. Note that several sensors are served by the same VREF circuit. I had one GM 3.1L engine that was running like **** and smoking black that had only 2 volts at the MAF. I started unplugging sensors to see if the VREF would come up to specs and found that I had 5 volts at the MAF with the Coolant Level sensor (in the radiator tank) unplugged. Replacing the Coolant Level sensor fixed the car. Any of the sensors could cause the same problem if it is shorting the VREF circuit.
If the VREF circuit checks out OK, Then I would Try a MAF sensor
If you are getting misfire codes, you probably have an injector sticking open.

Posted on Oct 11, 2009

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