P030 Code

[Starter986]

This code is resident on my 98 Tip. Has been for quite some time. Erase code... but it returns. Interestingly... it hasn't illuminated the CEL.

I've read and reread a variety of threads about the code, and am stuck.

I can pick up the Bosch O2 sensor for <$65. I'm thinking "least expensive" effort first and just plugging in a new sensor... see if the code goes away. I've a SMOG check due by June and want to get ahead of this.

Replace the sensor... see what happens. Yay or neigh?

Thank you.