Unlikely. Could be as simple as a loose gas cap. Considering that the emissions warranty is still in effect, take it to a dealer.
Bad speed sensor is a likely culprit
Most likely culprit is the ECT (engine coolant temperature) sensor. It can give this code and still not read high on the temp guage.
The oxygen sensor is screwed into the exhaust, behind the engine.
197000 miles does Possibly, and most likely, the oxygen sensor.
It is most likely your oxygen sensor
There are two oxygen sensor, follow the exhaust coming out of the engine. one in the front and one in the back of the engine. if you engine code p0135 bank1 these is oxygen is located between firewall and engine. or p0755 oxygen located in front of the engine
How do you change oxygen sensor in 1992 Toyota corolla? Is there a model engine 4A-FE without a oxygen sensor?
behind the engine
A malfunctioning oxygen sensor can cause the engine to be low on power.
A HO2 sensor (heated oxygen sensor) moniters the level of oxygen in the exhaust and sends that information to the engine control module.
An O2 (oxygen) sensor measures the amount of oxygen in the exhaust of an engine. The computer uses this information to calculate how much fuel to give the engine.
The oxygen sensor is one of many things that could turn the check engine light on.The oxygen sensor is one of many things that could turn the check engine light on.