Hondata

Hello i have a 1995 honda Civic and i cannot get my a/c compressor to kick on , only by jumping it

JDM k24a with NO vtec pressure switch/ so its blocked off and my connector is hanging.

Everytime i turn the a/c button on the fans come on, but the compressor does not kick on
it is wired just like hybrid racing's guide, it kick on when i add power to the compressor.

ive disabled multiplexer, vtec pressure switch, and checked USE VTP AS AC SWITCH.

Ive connected A15 BLK/RED on the (STOCK ECU CONN) to E18 (MINES IS EMPTY SLOT)on the (RSX ECU CONNECTOR) using the supplied yellow wire.

Ive Connected B5 BLU/RED wire on the (STOCK ECU CONN) to B9 a BLU/BLK (VTPSW) wire on the (RSX ECU CONNECTOR).

also one question . Do i need to ground the vtec pressure switch connector thats hanging inside my engine bay to get the compressor to work.

thank you !!!

What is the part number of the ECU you are using?

Does the AC system have enough pressure to come on? There is a pressure switch which will not allow it to come on if there is not enough pressure.

37820-pnf-a03
2091-301262

i had it recharged by the specs of the stock 1995 civic ex ac badge under the hood 19 ounces, the new compressor had 3 ounces of pag precharged, ive replaced the evaportaor inside the car with a new oem one witha exspansion valve also the pressure switch is brand new

THANKS FOR THE REPLY!!

Spunkster wrote: Mon May 09, 2022 4:43 pm What is the part number of the ECU you are using?

Does the AC system have enough pressure to come on? There is a pressure switch which will not allow it to come on if there is not enough pressure.

37820-pnf-a03
2091-301262

i had it recharged by the specs of the stock 1995 civic ex ac badge under the hood 19 ounces, the new compressor had 3 ounces of pag precharged, ive replaced the evaportaor inside the car with a new oem one witha exspansion valve also the pressure switch is brand new



THANKS FOR THE REPLY!!

I’ve came across this , and was wondering since I have a jdm k24a with no pressure switch to ground the vtp, can I manually ground the black wire NOT the blu/black wire.

The engine will have nothing to do with this. It has to do with the AC system, wiring and the ECU used.

Spunkster wrote: Tue May 10, 2022 9:05 am The engine will have nothing to do with this. It has to do with the AC system, wiring and the ECU used.

by any chane would u know the spec capacity to charge 1995 civic coupe with a k swap ? do i charge based off the rsx ?

also still not getting any power to the compressor , only the condenser fans turn on when i hit the A/c button inside of the car,

thanks for the help !

I do not have the specs for this.

All fixed and blowing 42’ degrees 🤣 yasss

Hey, what was the end all solution?