My car is a 1997 Lexus ES 300, with 176K miles. About 5 months ago, I started to notice hesitation when accelerating in cold weather. Recently this occurred again and the "Check Engine" light came on.

The two codes were po120 - throttle position sensor and a misfire in cylinder 6. They seemed to think they were two seperate issues. They suggested that the issue could be as simple as a tune-up, or fuel injectors. Any ideas where to start? I am tempted to start with a tune-up, but as the car needs some other work not sure how much I want to spend on it.

Thank You

 

Where in NY are you located?

The misfire is likely a bad plug, wire, or a clogged fuel filter. Have ANY of them ever been changed? If those are all original, I;d replace all that. 95% chance that solves the misfire.

The TPS (Throttle Position Sensor) is indeed a seperate issue.

What other work does the car need?

 

I am located in Syracuse NY.

The plugs have been changed, but that is it. I purchased the car with 100k miles so not sure what was done before that.

The car does need front struts, but other than that is in wonderful shape.

 

The OEM Toyota wires have the year stamped on them, on all wires, in several places. Take a look and see if they are the year of the car. Change the fuel filter too.

For the front strunts, ALSO change the mounts and bearings with it.