3.1 v6 - 94,000 miles - not only does my tach and speedo bounce up and down at low speeds, but my RS seems to want to stall out while idleing. The idle is rough and seems too low. It has a great tune up on it with platinum 2 plugs. with my mileage, could it be the timing chain?? I was thinking IAC and MAF - and if it has one maybe a Throttle Position Sensor. Maybe even the EGR? EGR Solenoid? I'm not getting a CEL so maybe it's just the IAC? Aside: my oil pressure guage never moves, not even when the RS is off. It just stays buried past maximum. Oil pressure swith? Any input is appreciated. - Nate