Hi to everyone,
Please advise on 2003 Sentra Gxe 52k miles. Had it for a year and runs well. a month ago the car would only start but not rev up, will run only about 5 mph. Finally run late in the afternoon. Took it to my mechanic-not nissan-could not repeat the problem. Hooked up the scanner and got these codes: p1705/tcm/app signal, P0037/bank 1/senr/O2, P0102/MAF, P2122/APP SENSOR 1 LOW, P0452/EVAP. PRESS. SIGNAL, P1229/SENR. PWR SUPP SHRT. Cleared out the codes and car runs fine for three weeks till today. The car starts fine but would not rev up or run more that 5 mph. Scanner reads same codes plus two other ones. Can anybody tell me what might be causing this before i go to the dealer (My mechanic's recommendation.). Is my ecu going bad? Speed sensor or throttle position senr.
Any advise would be helpful as i know the dealer will want to change abunch of things in my car. Thanks in advance for your help.

 

With your car throwing that many codes at one time I would break down and take it to the dealership.... they will charge you a diag fee, but normally if you choose to get the work done there they will put that fee towards the labor and parts.... I wouldn't throw parts at that problem.

 

Thanks for the reply. Actually forgot to post the the power sensor switch code was up to. Nissan mechanic said that was disabling my engine. Sensor will be changed tomorrow. Thanks