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Imperial Beach, CA
I have a 4 cyc single exhaust 2004 Hyundai- I have one 02 sensor on top of the exhaust manifold; another one just below the flange of the exhaust manifold where the exhaust pipe connects to the exhaust manifold.
OBD codes 421
Runs okay when not under a load
When I climb a hill, I am huffing and puffing. When I merge onto a freeway, I cannot excler fast enough.
I do not want to worry of another bulb to change.
The airbag light stays on all the time.