So the plot thickens.

I opened up the hood on my car looked at the wiring harness. There were no white tag near the connector, so I decided to slit open some of the insulation near the intake. The wiring looks fine! Only place that it shows some degradation is when it connects to the spark coils.

I only get the code #3 which is lambda control...

Any suggestions? Should I still replace the wiring?

Thanks
Richard