My car's loses power when the ac is on and the idle speed fluctuates
That is pretty much normal. When the AC engages it's compressor it triggers the idle sensor to increase idle to compensate for the huge load that an AC unit puts on a vehicle. If your AC is producing cold air, approx. 40 degrees on high, then it should be ok. Power loss is all part of the program with AC. It takes much more noticeable power to run an AC unit on a vehicle, and especially a 4 cylinder. Ever see your house lights dim a bit when you turn on the Home AC central air? :.) Every item under your hood connected to your engine steals power from the engine. The AC is the king of all takers of power.
SOURCE: My 1999 vrg galant is constantly buking and holdin back when driving....
Can you tell if your car is a GDI or MPI? What do you mean by buking? Can you describe the problem a little bit more...like when it does it cold or hot full throttle or slow openings?
SOURCE: Vrg galant smoking on start
SMOKING BLUE YOU HAVE LOW COMPRESSION ENGINE BURNING OIL.YOU HAVE WORN VALVE GUIDES ALSO VALVE SEALS AND WORN PISTON RINGS.
SOURCE: 2000 gdi 4g94 galant. fault,
Has this always bee like this ?? If so thats because your cars computer is programed that way, Different cars are programmed differently, depending on their use, for example sport cars are programmed to be faster and pull more air and fuel to run faster. But those for home or economy use like yours is set up to be economical. If you want this changed speak to a local car garage specializing in fast cars and modding, they will be able to reprogram your cars cpu or replace it with a modded one.
If that wasnt always so then have a diagnostic done on the cars computer, to look at the throttle body position sensor, oxygen sensor, fuel pressure sensor and electronic accelerator one of those are malfunctioning an needs changing.
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