[V8] ECU codes/poor running-idle

[Kent McLean]

John Dodd wrote:
 > Engine misses,idle goes down to 200 and up to normal again,
 > feels like driving a 7 cylinder car.

Ignoring the codes, anytime I hear "rough idle", I think
O2 sensor.  If yours have over 60K miles on them (or you
don't know when they were last changed), I'd replace them
and see what happens.

--
Kent McLean
'94 100 S Avant, "Moody"
'89 200 TQ, "Bad Puppy" up in smoke