I disconnected the one on my '84 pup when I had it. Would hook it back up for emissions inspections. There was very little gain in disconnecting it. Since I live at 5500 ft elevation and frequently go over 12k ft passes in the mountains every tiny bit helps (especially with that very under powered 4 cyl). But if you dont live at high elevation I doubt you would notice any difference in power so no point in messing with it.

--Dave

1999 Rodeo LS 3.2 4x4 5 Speed
32x11.50-15 BFG T/A KO on US Wheel 94 series
3" Lift - Rancho 9000x
Rear No-Slip Locker
Flowmaster 50 series SUV 2.25"

There is a very fine line between "hobby" and "mental illness." - Dave Barry