20 Most Recent Hyundai Motor 2003 Sonata - Page 8 Questions & Answers

Firstly stop changing pieces willy nilly as it costs money and is unnecessary ,firstly go back to basics and remove a plug lead and then put a old plug into it and hold this against the cylinder head and see if you have a spark ,then answer this post

YOU GOT A WATER PUMP GOING OUT ON YOU !! CHANGE WATER PUMP @ EVERYTHING WILL BE FINE !!

Hi,

On a Hyundai this error code indicates a a faulty TPS (throttle position sensor). You will have to replace it as the circuit is open and it is faulty.

Thanks for using FixYa.

door switch

First, do not use them or you will do damage to the windshield itself...You need to drive it to an auto parts store and have the blades checked or the arms replaced-you will only pay for the parts, they ill install them for free.

If memory serves, try this
Hold the AMB button and press the TEMP down
button for at least 3 seconds.

???

You have to raise/lower motor sometimes or remove components to gain access. Sounds like you got the right part yes.

FixYa Support

There are multiple answers for the vague description given. A dirty, or Wet Air Filter could cause this. Did it occur suddenly, after possibly going over some road trash/debris. That could block air intake to the Air Filter. Jumping at idle, is it with the A/C on, or it off. When the A/C is on, it is supposed to trigger the cold start, additonal fuel source on the fuel rail, to increase RPM's to compensate, for the A/C drain on the motor's power. If a small 4 cylinder engine, it can be a randomly misfiring plug, or plug wire. What does your owner's manual, recommend as time interval to replace plugs & wires.????? Have you followed that maintenance schedule???

You did everything you can when its wet and you replaced plugs coil injectors. You are dealing with a low compression or head gasket. Also check the coolant you could be loosing it.

one before the cat and one after ,their are two on this model if i remember rightly

Most likely is the ECM is in "limp home" mode. You should borrow/rent an OBD II scan tool (Autozone has tool rental iirc) and pull the codes. There will be an interface port on the driver's side under the steering wheel or near the door.