Question about Hyundai Cars & Trucks
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.
562 is not a valid code. You need a letter prefix and one more number 0-9.
Posted on Mar 20, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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)
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
Tips for a great answer:
Feb 08, 2017 | 2009 Hyundai Accent
Nov 04, 2013 | 2006 Hyundai Accent
Dec 07, 2011 | 2001 Hyundai Accent
Oct 13, 2010 | Hyundai Accent Cars & Trucks
Apr 25, 2010 | 2001 Hyundai Accent
Jun 26, 2009 | 1996 Hyundai Accent
Jun 23, 2009 | 2001 Hyundai Accent
Jul 16, 2008 | 2000 Hyundai Accent
172 people viewed this question
Usually answered in minutes!