rough idle

[ITSAV6]

My car is idling rough after sitting up nearly 2 years. I had sta bil in the gas for what good it did. I pumped tank out and put fresh 93 and it idles better and smoother with time. But still runs like crap. I know a couple of gallons are left in tank and I put 5 gal of 93 in but it still smells stale. I think my injectors are varnished up from sitting. Will a gallon of Xylene added in the tank clean them out or do I need to replace them?

 

[GN ERGY]

If you pumped out the tank via the fuel rail, there should of only been about a gal. left. I had my GN sitting for about 8 yrs. and I didn't have any injector problems. Try replacing the plugs and unscrew your IAC and make sure the pintle isn't stuck. Then reset the TPS and the IAC.
Tarey D.

 

[ITSAV6]

plugs

Did plugs first thing. I let it sit and idle for 45 minutes or so. Had to reset the fuel psi it was low(25) and it idles pretty good now but has a very slight skip to it. The exhaust still has that stale gas smell to it.

 

[RobV6]

HTH's! Just yesterday my Limited which is gong into body shop
Was doing the same thing. I figured all the things that were
mentioned. Just for laughs. I hooked my T'Link to it.

Found out it was the 02 sensor. Maybe,I'm wrong. But it can't hurt. So going to replce it today. I hope. Car uses a lot of gas too.
It just was running rough.

Hope this helped. By All means check the easy stuff out first.
Just trying to help. My car has sat for 2 years.

Good Luck............