1993 Ford Escort Q&A

1993 Ford Escort Question: 93 Ford escort has a 172 DTC, what could cause this?

Answer 1
Pull PCV Valve and check -
Comment 1
PCV Valve operates as it should.....Just checked to be sure. thanks for your response. Just got back from smog check. I replaced the O2 sensor and cleared the codes. It passed with flying colors, with no Check engine lite. thanks for the help! -