Ref.: '93 Dodge Spirit, 2.5L, K, 150,000 mls.

Help!

I am receiving code 52 on a diagnostic scan. I am also aware that this means the oxygen sensor is stating that the engine has a sustained rich fuel condition.

What I would like to know is, "What's causing this?" map sensor? fuel injector thingy (single point injector system)? etc.?

I should further state that this is an intermittent problem; more on now than off, though.

As I said, "Help!"

Thanks,
mike hill