99’ LEGO, 30th. 2.2. Auto. 150k. Stock. New factory front o2 (replaced because I had it laying around not because of issue) new knock sensor. New coil, NGK plugs and wires. New fuel filter.
OUT OF NOWHERE—Intermittent- Car bogs, dangerously so, anywhere outside the first and last 1/8 of throttle range. If I have the car mid throttle- BOG. As I let back out and get in that first 1/8 again it will downshift and surge with life.
Rusty filler neck that throws EVaP code and leaks when filling, sometimes.
Never runs bad when CEL illuminated. Never throws CEL when it runs rough.
This is the 3rd Subaru I’ve had with this issue. Solved those with o2 sensors. The other two didn’t have holes in either of the filler necks, but each had EVAP ghosts.
OUT OF NOWHERE—Intermittent- Car bogs, dangerously so, anywhere outside the first and last 1/8 of throttle range. If I have the car mid throttle- BOG. As I let back out and get in that first 1/8 again it will downshift and surge with life.
Rusty filler neck that throws EVaP code and leaks when filling, sometimes.
Never runs bad when CEL illuminated. Never throws CEL when it runs rough.
This is the 3rd Subaru I’ve had with this issue. Solved those with o2 sensors. The other two didn’t have holes in either of the filler necks, but each had EVAP ghosts.