'96, 2.5L, 106,000, no mods... I've had this insufficient egr flow code for about a year and just a couple of days ago the beast started to "buck" (fluctuating rpms, felt like it was down shifting, hard bangs, etc...)
Then pulled the 0420 code which is an oxygen sensor. Drivers side, upstream.
1. Could the egr code contributed to the oxygen sensor fouling.
2. Can the sensor be changed without putting the car on ramps, or a lift?
