Call autozone and they will have a diagram of where this is. also in the haynes manuel the is a location showed for you
on a 1994 it's behind the harmonic balancer
To install the crank sensor on the harmonic balancer of an '88 Oldsmobile Delta 88, first ensure the engine is cool and disconnect the battery. Remove the harmonic balancer by loosening the bolt and using a puller if necessary. Position the new crank sensor in its designated mounting location, aligning it properly with the harmonic balancer’s signal wheel. Finally, secure the sensor, reconnect the battery, and test the installation for proper function.
on the front of the motor under the front crank it has a plug going to the crank.
It is integrated in the distributor.
my 88 fiero had two valves stuck, one on cyl 2 and one on cyl 3.. if it would start it was on one or two cyl... or he crank senor might be bad
My problem on the 88 I was working on turned out to be the crank position sensor located on the driver side top of the bell housing.
it's built into the distributor
Check the crank sensor
crank or cam sensor...did you already figure it out?
On a 1999 Oldsmobile 88, the crankshaft position sensor is typically located near the lower front part of the engine, often on the engine block near the crankshaft pulley. To access it, you may need to remove any obstructions, such as the engine cover or other components. The sensor is usually mounted with a couple of bolts and connected by an electrical connector. Always refer to the vehicle's service manual for specific details and procedures.
depending on what year I have researched and found my 94 olds 88 has a gm commonly failing part called a Crank Shaft position sensor it is located behind the tensioner pully cost me $200 to have it tested and replaced and I haven't had a problem since
The setting is you better have good eyesight! It has to be positioned between the fins on the back of the cranshaft dampner.