Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Do you know what codes are being stored?The knock sensor won't cause the check engine light to come on, even if the code is stored, so there must be another code that is causing the light.
Please let me know when you can, thanks
So, you are saying the check engine light was on and there weren't any codes when you scanned it? Did the inspection computer show no codes, or did you use a code reader?
The 99 maxi has 2 diagnostic connectors on it, one is the OBDII that the code reader and the inspection computer connect to. The other is the factory connector, this is a grey 17 pin connector. I believe you will have to have it scanned using this connector to determine why the light is on. The OBDII should actually pass even though the light is on because there aren't any codes in the OBD system, the light is on because of a code stored in the Nissan system. Without getting into that system we can't tell why the light is on,
I think the car will pass the computer test, but that really depends on if the inspection station is willing to accept it with the check engine light on. There is something going on with the car, but whatever is happening is not part of the OBDII monitoring system. It has to be a Nissan only code making the light come up. This was how they were made until 2000-2001
You will have to find a shop that can connect to it with the Nissan 17 pin connector, I would suggest the dealer or calling around. They should be able to clear the light after performing any repairs the car may need.