your car should rev up when you turn the air con on, it may just be very low on gas,either way your going to need to take it to an auto electrician for a regas or a workshop

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Marti


Car: C Red S13 Silvia 2.3l 400+rwhp-SOLD
Daily ae82 4age corolla (light mods)-Sold
Daily:SWB GQ Patrol
Will be a 03-04 STI next