it has the wire for the o2 sensor but it's been snipped and the flange was cut off of the y-pipe before I got it. I am 100% sure it's not an o2 sensor problem since it's been okay the last couple years I've owned it.
Gas cap is on tight, all vacuums have checked out so far. Had one that was cracked/dry rotted but I replaced it, no change. EGR didn't have any carbon on it and when I pushed the plunger it moves freely and pushes air out of the nipple.
Tried a used MAP sensor from the yard and no change.
When I cleared the codes after taking the egr valve off and getting it back on, the codes have not returned, well, only the o2 code.
So even though the egr is clean and the plunger moves freely it could still be bad? Took my moms b/f a ride 30 minutes ago and the fucker didn't stall once, the clank was gone and it ran great. However, when we got back idle was choppy as hell and exhaust fumes were horrid. Smelled like gas. Rich or lean?
Can't figure this out and it starts so fast now it's kinda scary lol