My 'Service Engine Soon' light came on today on my 99 Max SE. I pulled the code off the ECU and it is 5 long, 10 short. According to http://vbxmaxima.8m.com/ecudecoder.html this code is undefined.

Has anyone seen this code before?

The only problem I've had with this car is a stumble at idle, probably caused by a faulty coil pack. I was hoping this code would point to one cylinder so I could replace just that coil pack.

Thanks for any help,

Allan

 

Exact same thing happened to my 99SE-L a few weeks ago. The warning hasn't returned, and the car runs lovely, so...?

Read here...

 

0510 Is the rear oxygen sensor. You can reset your ecu to clear the code. Most likely it will come back at some time. Maybe 1 day, 1 week, 1 month. Car will run just fine with the code. I had the same problem and after a few months of resetting the ecu, I went ahead and replaced the sensor. Easy to do and cost about $65 for the part at Courtesy Nissan.