My families 2001 Nissan sentra often stalls at stoplights, has low power sometimes in the low rpm’s and sometimes (though not always) chugs/jolts a bit at low rpms and has trouble “overcoming” that window and getting more power. If I give it more gas the engine seems to get “normal” at around 2500 or 3000 rpm’s and then is fine.
We took it in and the mechanic said it was a bad O2 sensor or MAF sensor… can’t remember which. We tried replacing the MAF sensor but it still has the problem. We have heard that we may need the computer re-set somehow or made to recognize and sync up with the new part. As we call around this is very expensive just to make a part that is already installed work. Is this necessary? What’s the next, cheapest, step. Thanks!