How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask George H. Your Own Question
George H.
George H., Hyundai Technician
Category: Hyundai
Satisfied Customers: 2091
Experience:  Hyundai Gold certified, ASE Master tech 15+ years
13574682
Type Your Hyundai Question Here...
George H. is online now
A new question is answered every 9 seconds

Well i bought this 2006 hyundai accent gls and it idles jut

Customer Question

well i bought this 2006 hyundai accent gls and it idles jut fine it starts to choke out once it gets to around 30 km we have hooked it up to a computer and i says its running lean and there is no combustion in cylinder 3 we have already looked at the fuell pump under the back seat and that doesnt seem to be a problem weve checked the plugs they are good we think it has some thing to do with the injectors ...?? what could it be ?
Submitted: 1 year ago.
Category: Hyundai
Expert:  Andrew Martin replied 1 year ago.

What are the codes that you have in the computer? P0303 and P0171?

Expert:  Andrew Martin replied 1 year ago.

Most of the time on those vehicles when they are running rough it is just an ignition coil that is the issue. If cylinder 3 is the issue, try swapping the ignition coil from cylinder 3 to cylinder 1 and see if the misfire moves to cylinder 1. If it does, replace the coil.

Customer: replied 1 year ago.
weve tried that those are those long things that go into the engine right well those are alright too
Expert:  Andrew Martin replied 1 year ago.

Yes. Ok, if you can get the codes for me that would be a great help. But until then, there is a few things you can check. First, check if there is any obvious large vacuum lines not attached. Most are on the right side of the engine. Also if you hear a hissing noise that indicates a vacuum leak. Check the air intake tube to make sure it is on the throttle body tightly. Check the engine air filter to see if it is clogged. Also, there is a connector on top of the intake tube coming off of the air box. Remove it and make sure that it is not corroded and that the pins look clean and not damaged. If you feel comfortable, remove the intake tube from the air box cover and look inside. There is a sensor in there called the mass air flow sensor. Just make sure there is no debris in the tube or on the sensor and if there is blow it off gently.

Customer: replied 1 year ago.
personally im useless but my husband is completely capable he been the one working on it so far
which ever you think will be the most benifical
i just want this thing to run i need to go outta twn monday and
Customer: replied 1 year ago.
go with the diagnostic and perhaps what you supoosed it could be to point me in the right direction
Expert:  Andrew Martin replied 1 year ago.

Ok, if you can get the codes for me that would be a great help. But until then, there is a few things you can check. First, check if there is any obvious large vacuum lines not attached. Most are on the right side of the engine. Also if you hear a hissing noise that indicates a vacuum leak. Check the air intake tube to make sure it is on the throttle body tightly. Check the engine air filter to see if it is clogged. Also, there is a connector on top of the intake tube coming off of the air box. Remove it and make sure that it is not corroded and that the pins look clean and not damaged. If you feel comfortable, remove the intake tube from the air box cover and look inside. There is a sensor in there called the mass air flow sensor. Just make sure there is no debris in the tube or on the sensor and if there is blow it off gently.

Customer: replied 1 year ago.
weve done all that already
Expert:  Andrew Martin replied 1 year ago.

Alright, without the codes its a guessing game. Have you checked fuel pressure?