Looking at the engine on the right ride. Its going to be the round object where the timing cover stops on front of the engine.
Refer to your manual. Buy a Chiltons.
No crank sensor on a 1990, only the pickup plate (cam sensor) in the distributor. how about a 1991?
Using a scanner with a scope, you can view the output wave of the sensor as you crank the engine.
it does not have a crank position sensor. it uses the ignition control module as a crank sensor. it is in the distributor cap
There is no cam sensor on a 90 3.1. Only a crank sensor.
Dodge Dakota V6's didn't have a crank sensor until 1992.
Inside the distributor
diagram of a nock sensor in a 300zx 1996
Inside the distributor.
what sensor?
My 1990 Lumina 3.1 had the same problem and it was caused by the crank sensor.
"http://wiki.answers.com/Q/Where_is_the_crank_sensor_on_a_1990_2.5_buick_skylark"