Serive engine light is on - 2004 Nissan Quest

sounds like the electric servo on the front differential is bad very easy to change.

On the front of the engine in the bottom of the timing chain cover. You need to go under the truck to see and serive it.

Basically this means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

You will likely not notice any drivability problems, although there may be symptoms such as a rough/hard idle when cold.

A code P0430 may mean that one or more of the following has happened:

• The catalytic converter is no longer functioning properly
• An oxygen sensor is not reading (functioning) properly
• There is an exhaust leak, have a very good day !

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Wheel speed sensor is damaged,wire broken.

What exactly did they do to make the repair?I can not find that code at all in my code list.

More than likely it's time for your next oil change. This is an automatic programming in your car's computor. Turn key on, push gas peddle to the floor 3 times, turn key off & on & light should have disappeared. Good luck!

There are a few possibilities but the easiest,& fastest, as well as cheapest usually, is to stop in at one of the major autoparts stores & ask for free fault code scan. If it reveals something very obvious is faulty, grab it while your there, if not, get back to us with the code(s) they told you, and we'll help you out.

if u r not a mechanical engineer, my suggestion is to get it changed in the nearest serive center, as the it involves lot of hard struggle to do it, n about timing chain, u need to open up ur engine..!!

If there is an engine code po410 you have problems with your airpump. There are bulletins out on this situation.

its a sure problem due to mechanical failure done/occured due to vehical's sudden jurk, or mal fixing of A/C elements during vehical serives, kindly go for the company serive station, without wasting much of time, as due to perssure building up in compressor may lead to further damage to the system, and please avoid you yourself fixing of the things, if you are not well expertised in it. thank you.