Idle problems on 02 Nissan Altima
i have a 02 Nissan Altima that just had a used engine put in. After we got
the car running I've noticed it will idle up nd down. It will only do it in park, i
do not notice it in drive. Also it doesn't do it all the time. but when the car
isn't reeving up and down it will idle high at about 2000rpm. it has also
flipped the check engine light. Before the motor that was placed in this car,
the previous car it did not run this way. It did perfectly fine.No noticed in gas
milage change or performace in engine. what could be wrong and what do
i need to look for to fix it. its getting quite annoying. Thank you