New VX Owner and Rough Idle

[psychos2]

What codes is it showing? shawn

[VehiX]

Intake gasket perhaps?

[Joe_Black]

If you don't have a code reader get ye self to a local AutoZone as they'll pull codes for you. Also, try disconnecting your battery for about 30 minutes so the ECU will reset.

Rough idle is generally indicative of a fuel issue and sometimes ignition. You may have something as simple as a loose sensor connection or perhaps one has failed. If that's the case you'll definitely have codes.

How does it run when driving? Does the power feel normal? Is the only problem you're having with the idle?

Keep us updated!

[Andrey]

Welcome to the club ! I myself have '99 with rough idle. I've heard the intake gasket needs replacement. Depening on the weather/humidity conditions it will act on you. I've heard it is $200 repair. Good luck !

[AlaskaVX]

I would definately look into the intake gasket as others have mentioned. Other little things to do may be change the fuel filter, spark plugs, clean/wipe down MAF sensor in intake. But if you can get the code read we can probobly help more.

BTW... Which Island in Alaska?

[Dare2Dream]

I'd look at two things: The intake gasket as everyone else mentioned and also around the EGR for any leaks. When one of my EGR bolt was loose, i had a dancing idle.

So in other words, some sort of an air leak would cause that. If that is the case for you, then you'd also probably feel some power loss. In my case, I had this sound whenever I accelerated, it was like someone holding a card in the spikes of a bike.

[etlsport]

was looking for a dome light through google and somehow ended up at a general maintence site?? anyway found this little tidbit and figured it might be helpful

Eratic Idle Speed:

Isuzu engines commonly exhibit eratic idle problems, the engine revving and dropping in rpms, sometimes dropping almost to the point of dying. There are several things that can cause this problem:
Leaks in the vacume hoses or aged, cracked hoses can let in air that is not being metered by the ECU's sensors.
Leaking or sticking EGR Bypass valve may be allowing exhaust gasses into the intake when the engine is not under load (idling).
Loose electrical connections in the engine sensors can cause problems.

doesnt specifically talk about VXs or even the 6VE1... but it does give good random isuzu advice

http://www.isuzuperformance.com/isupage/tech/tips.html