AC stays engaged WOT

[Matt Birdsell]

Hello, the wife’s car is a 2008 honda civic lx 5-spd. It’s got 286k on it, we are original owners. The car is pretty sluggish after all these years, and we’ve noticed that the AC doesn’t disengage when we have the throttle to the floor. On several occasions we’ve felt it engage while at WOT and rpms were around 5k+. Isn’t the normal behavior for the ECU to disengage the AC clutch when at wot? AC behaves normally otherwise. No CELs (historical or otherwise). Idles a bit rough but at 650rpm. New motor mounts helped a little with at but not much.
Anyway, any ideas on where to start to diagnose this type of behavior? What would make it NOT disengage the AC at wot?? Throttle Pos. Sensor? It’s a DBW vehicle so this is a different animal than I’m used to. Thanks in advance!

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[Matt Birdsell]

I’ll be replacing the AC clutch relay. Not sure if it will help but figured I’d try.

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