Check for codes if you have a check engine light illuminating.
If the check engine light is on with no codes, you have a wiring or computer issue.
turn the key on and off 3 times and count the check engine flashes
55 Means End of Code... Its nothing to worry about. Just means there is no codes
There is no OBD connection on a 1990 Nissan as that is an OBD1 vehicle not OBD2. However there is a way to read the codes. https://codes.rennacs.com/Petrol-Engine/Japanese-Korean/Nissan-Engines.php
on top of the computer you should find a wiring harnes one of them dose not have a end. and that is war you plug it in. on the right kick panel.
what is code 14 in Honda civic 1990
Have vehicle scanned to determine problem and recover codes Could be a bad coolant temperature sensor
The check engine light cannot be retrieved on a 1990 Cavalier unless a problem develops with the engine. The engine can be checked for errors, though, by using a tester that is plugged into the vehicle's computer.
It could be the coil pack or the crankshaft position sensor. run the codes by turning the key on, off, on, off, on without turn the key to start position. shotly after the check engine light goes off, the check engine lght will flash 2 digit fault codes. if 11 is one of the codes its likely a bad crank sensor.
Between 80 and 90 degrees Centigrade.
In general, the computer turns on the "check engine" light when there is a diagnostic problem code. Use a code scanner to find out what is wrong. The computer will assist you in finding out what's wrong. Diagnostic scanners are available at most auto parts retailers.