RepairPal is your advocate for car care advice and guidance

Q: Which O2 Sensor is the B2, S1. And is it upstream or downstream? on 2003 Toyota Solara

Toyota diagnosis as to the reason my check engine light is on. B2-S1 O2 Sensor is bad..
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
that would be an upstream, sensor is located in or near the exhaust manifold, would be a better option to replace both bank 1 and bank 2 sensors at same time..
Didn't find what you were looking for?