Hard Set the parking brake, and block the rear tires. Jack up the right front chassis enought to remove the tire and wheel. Put safety jack stands under that area and lower the jack . Remove the plastic inner wheel well covers to gain access to the front of the engine. There you will see the bottom most engine pully (crankshaft dampner)on the serpentine belt system. At three o'clock you will see the crankshaft sensor and it's mounting bolts. The sensor extends into the metal fins on the back side of that pully. If the sensor is busted up you should remove the pully and check for bent fins. There is close clearance between the sensor and the fins and when you install a new one it has to be close and center between the fins - but not too close and the pully fins have to pass thru the sensor gate grooves without touching them. LOL
The Crankshaft sensor is located behind the Harmonic Balancer on the front-passenger side
To locate the crankshaft sensor on a 1988 Oldsmobile Delta 88, first, ensure the vehicle is safely elevated and the battery is disconnected. The crankshaft position sensor is typically found near the engine's crankshaft, often at the front or rear of the engine block or near the timing cover. You may need to remove some components, like the air intake or accessories, for better access. Consult a repair manual for specific diagrams and detailed steps for your model.
you have a sensor problem.
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How to change a timing chain in a 1998 Oldsmobile delta 88
You have to remove the Vibration Damper first, then you will have clear access to the Crank sensor. Make sure when you reinstall it, the wires don't get caught in the Damper assembly and you have clearance where the sensor mounts. Easy fix.
At the end of your air cleaner tube is a square box with 4 screws and a plug in. This is your mapp sensor
On a 1986 Oldsmobile Delta '88, the oxygen (O2) sensor is typically located in the exhaust system, either in the exhaust manifold or just downstream of it, before the catalytic converter. To access it, you may need to raise the vehicle for better visibility. The sensor is usually threaded into the exhaust pipe and can be identified by its electrical connector.
The 1989 Oldsmobile EGR valve is located on the top of the engine, near the back. It is quite simple to change.
In a 1983 Oldsmobile Delta 88, the oxygen sensor is typically located on the exhaust manifold or just downstream of it in the exhaust pipe. It may be found near the catalytic converter if the vehicle is equipped with one. If you're having trouble locating it, consulting the service manual for your specific model can provide additional guidance.
The low coolant sensor on a 1993 Oldsmobile Delta is typically located in the coolant reservoir tank. It is usually mounted near the bottom of the tank and may be accessed by removing the reservoir from the vehicle. If you're looking for it, check for a wire harness connected to the sensor that indicates the coolant level. Always consult the vehicle’s service manual for precise location details and instructions.
The camshaft position sensor is located behind the water pump pulley. If looking directly at the pulley, it is at about the 10 O'clock position. TechJK ---------------------