i was driving back from the gym last night and the front window got foggy. so i flipped on the defroster. The car lost like 1/2 of all its power. at the red light it went down to like 400 rpms and the lights dimmed and when i gave it gas it felt like i was driving a colrola. wttff?? i take it the ac is draining power somehow? any reason why this would happen because ive used the ac before abotu 2 months ago and it was perfectly fine

 

i am no expert but check your belts, friend had the same thing happen on his eclipse the care would actually shut off....... the water pump ended up blowing up, i forget what the details of the problem were but it had something to do with belts pump radiator hose so check those.... oh yea is car also kept over heating as wekk I dont know if you have the same symptoms but check it out if you do

 

so far as long as i dont have the ac on there are no problems runs normally, but thankss ill check it outt

 

You may just need to let it idle with the A/C on to let the ECU self-adjust. See service manual excerpt below...

IDLE-UP OPERATION CHECK

1.Before inspection and adjustment, set vehicle in the following condition:
• Engine coolant temperature: 80 - 90 °C (176.0 - 194.0 °F)
• Lights, electric cooling fan and accessories: Set to OFF
• Transmission: Neutral ("N" or "P" for vehicles with A/T)
• Steering wheel: Straightforward

2.Check whether or not the idle speed is the standard value.
Standard value: 700 ± 100 r/min

3.When the A/C is running after turning the A/C switch to ON, and the blower switch to the 3(MH) or 4(HI) position, check to be sure that the idle speed is at the standard value.
Standard value: 850 ± 100 r/min

NOTE: The engine control module determines whether the A/C load is low or high according to the output signal from the automatic compressor controller.

NOTE: It is not necessary to make an adjustment, because the idling speed is automatically adjusted by the ISC system. If, however, a deviation from the standard value occurs for some reason, check the ISC system.

NOTE: Check 4 minutes after idling begins.

 

thankss dude, im going to check that out tomorrow. After i did the intake i restet the ecu and after that i havent turne dthe ac on , thats probly why