1990 Volvo 240 Q&A

1990 Volvo 240 Question: Just bought a 1990 240 DL sedan and I'm not impressed with the gas mileage.

Have read it may be the o2 sensor. Does anyone know how much that might cost to have looked at? or any other suggestions? -
Answer 1
possibly $100 to hook up a scope to your o2 sensor and verify operation...or just buy and replace it for $150 or so. -