I have a 99 Nissan Sentra 1.6L with automatic engine and 125K miles.
When I start up the engine and while in "PARK", the engine RPMs climb to around
1,400-1,500 RPMs and remain there, until I turn the A/C on, the RPMs drop to about 1,000.Then, when I put the vehicle into "DRIVE" the RPMs drop to around
1,000 (without the A/C on), but drop to around 800 when I turn it on.:confused: Can anyone tell me what could be wrong? :confused:
I just replaced the spark plugs, wire set, and rotor.
Thanks!