Picked up an automatic 2004 coupe with 134k miles back in August I’ve managed to Cut the codes from 8 to 2 and I’m still currently having issues. The codes are p2127 and p2122, I replaced the throttle body, APP sensor aswell as the battery and the negative ground too it. The fuel pump primes and fuel reaches the dampener, it cranks but only starts with starter fluid. Also im using the original key I heard nats could also be an issue. Any pointers in the right direction would be greatly appreciated.

 

Watch this video:

P2122/P2127 codes

 

This happened to me yesterday. I jumped into my car and when I started it the engine RPM jumped up to 1700 and I got the Slip and Service engine soon lights. Plugged in my scanner and got codes P2122 and P2127. After looking on the web I noticed some green pieces of plastic sitting on my drivers side mat. Turns out that the Accelerator pedal has a stop pad in the frame. When it breaks the sensor reading is now off. Others have used a 10MM head bolt in place of the rubber stop pad, but seems like it is just as much effort to install the pad or the bolt/nut. Since I was stuck in a parking lot I went and bought the stop pad from the closest Nissan Dealership, but you can get them from Z1 motorsports either the OEM or the urethane one for cheaper. Total time was 15 minutes for me to remove the accelerator pedal disconnect the electrical connector, install the stop pad and reinstall everything. Of course I was using an electric ratchet so that helped a bit. My 2006 has 146k miles on it. I found out the brake pedal has a similar set up so I bought those from Z1 and will replace when I get them. The clutch pedal has one as well but since I have an automatic I don't have to worry about that.

 

It’s crazy because it wasn’t even the gas pedal mostly I’ve finally barely gotten around to looking at everything and it’s a broken connection on camshaft sensor bank one, I’m hoping to fix it today though.