A/c Problem

[jnr_chin]

what controls the a/c to throttle up when turned on? i was told that the computer controls it how true is that?

i have checked the idle valve already its a rb20det engine. the a/c blows nice and cool if i use the gas pedal when its on to keep up the throttle it works quite fine. what could it be and is there a easy fix

[trel]

that would be a failing compressor i believe... you mean it blows colder air when your driving or revving the car right?

[jnr_chin]

that would be a failing compressor i believe... you mean it blows colder air when your driving or revving the car right?

normally when the a/c is turned on it takes power from the engine to operate the compressor so there is something that tells the car to throttle up. when i turn on my a/c it does not throttle up but it works fine otherwise but it throttles like at about 300rpm so if i rev the car and back off immediately it will shut off.

not sure but in some other cars there is a mapsensor resembling gadget not sure if thats the corrrect name that is hooked to a vacuum line to control it but in the skyline not sure what does it there