You can look up your code here:
http://autorepair.about.com/od/obdcodedatabase/a/OBD_1996_year.htm
Trouble code p1126 means: Thermostat Malfunction (Stuck Open)
Engine thermostat malfunction
2000 and 2001 (only) Engine coolant Thermostat Function
Trouble code p1126 means: Thermostat Malfunction (Stuck Open)
CHECK OUT THIS LINK TO A FORUM, IT ADDRESS' YOUR PROBLEM. MIGHT BE A GOOD PLACE TO START. http://x.nissanhelp.com/forums/altima/4647-engine-code-p1126.html
I changed the thermostat and the light is still on.Now the code is saying throttle relay.I was told it may be engine temp sensor,but it seems to be a different code.
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