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My 2001 CRV started making a clicking noise under the hood and the engine would shake when the AC was turned on. Symptoms went away but AC does not blow cold air. Compressor engages, cooling fans...

You were right. After I replaced the top front sensor with the correct (Civic HX) Denso sensor it cleared the CEL after ECM reset. I still have the idle concern. Likes to hover at 1200. Will come...

OK so after I get a good Denso in the top front location (This is an HX which that sensor runs around $200) and the lead o2 sensor, this should fix the problem?

Just noticed there are 3 O2 sensors. I replaced the one right in the midddle of the exhaust manifiold top front. There is another in front of the Cat and one behind. What's the difference between...

My 2001 Civic HX presented a check engine light with OBD 2 Codes P1166 and P1167. Runs normal with the exception of not idling down after acceleration or reving the engine. RPM's come down to...