Can't figure this car out..
Had a flowmaster outlaw axleback on, no check engine
Put on a summit after cat X pipe, check engine engine.
Removed x pipe, check engine light.
Back to complete stock exhaust, check engine light.
Everything the ob2 scanner was on, battery was disconnected and codes were cleared.
Black soot on both exhaust tips all the time.
Got an aftermarket o2 sensor, light stayed off for 3 weeks.. Came back on and said it was a permanent code.. Got an AirRaid cold air intake and got had a hesitation. Removed that and put the stock o2 sensor back in. Drove better..
Went to Ford and they installed a new o2 sensor and updated my ecm... Drove PERFECT and so smooth until the check engine light came back on and showed this code, 40 miles after leaving the dealer.
O2 Sensor Pumping Current Trim Circuit/Open Bank 2 Sensor 1
The car started having its sluggish low rpm and take off power, as it did before..
CAN NOT figure out why I keep getting this code and what the problem could be.. Anyone have any input or ideas?????