Hey what's up fellows , I have a 2007 Honda CR-V and the A/C pressure switch reads over 27,000 psi on my HDS. I replaced the sensor with a new one and now it reads over 1,000 psi ! It brought it down significantly LOL.. still my compressor will not kick in cause it thinks the pressure is way up there over the 445 psi limit. I can kick on the fans and compressor with the HDS, but neither will turn on , on its own do the false reading. It tells me I have control and the compressor works , but no signal allowed do to the false reading of psi. So I want to replace the ECM but the one in the vehicle is number 37820- RZA-A75 and the spare one I have is 37820- RZA-A76 , would there be a problem using it on the car ? Has anyone swap out there ECM with a different number and worked out fine ? Thanks I can use some help..

 

you might need to reprogram your key if you do.

 

Is the key programming be the only issue if the unit works ? So,I can use the other ECM? I have a HDS unit it should have a way to reprogram the keys.

 

Hahahahahaha I thought my HDS had immobilizer and it doesn't , had to put back the original ECM . I will purchase a HIM and a HDS program, hopefully that should do it ? Anybody try that way ? If possible let me know how you guys have replaced your ECM on a honda and what tools , program you used also to relearn the keys . Thanks

 

You might need to update your HDS. It should be able to program keys.