I have Maruti Alto LXI 2004 model.Now it has driven 96000 km. When I drive on traffic with AC,the engine rpm increase as unusually. And also engine power is go down.... what can I do for that??
When the A/C is switched on the engine ecu increases the idle speed by a few hundred rpm to make sure the engine does not stall and keep a "smooth" idle. This is normal.
Also, the A/C system can demand some 10bhp or so during its operation - which is why some people will switch off the A/C when doing an overtake for example.
So, if you want the power back then minimize your use of A/C...
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can I know this problem relate with condition of alternator and battery???? – Rathnayake Arachchige Jun 7 '19 at 4:26
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@RathnayakeArachchige How are you evaluating the condition of the alternator and battery? What readings have you recorded under what conditions? – Solar Mike Jun 7 '19 at 4:47
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I haven't any record about battery and alternator because, Im the 4th owner this vehicle. Odometer shows around 96000km. Im sure there was not any replacement of alternator or battery..... – Rathnayake Arachchige Jun 7 '19 at 7:51