My 1992 olds 98 wont turn over or start, i already replaced safety nuetral and ignition switch

SOURCE: 2002 Grand Am 3.4L automatic.

Need to know which option you have? L61 or LA1 Will e-mail you electrical diagram [email protected]

SOURCE: 96' saab safety neutral switch

It is under the battery tray. Here is where it is and how to get to it.
Here is another procedural tutorial on how to remove and replace it.
Assuming that this is an automatic, the NSS is a common problem. A common, cheap and easy ten minute bypass method has been developed to get around the problem or at the least to use to confirm the diagnosis of a failed switch.

Bruce Bracey

• 1000 Answers
• Posted on Mar 04, 2009

SOURCE: 1992 cavalier ignition switch and key assembly

The following procedure is "generic" for replacing the lock cylinder. There are a couple of specialized tools you will need and saftey precautions concerning the air bag system.
Take a look and let me know if you wish to tackle the job.
Regards,
To remove the ignition lock:
CAUTION You must remove the steering wheel when replacing the ignition lock. On vehicles with a Supplemental Inflatable Restraint (SIR) system, you must temporarily disable the SIR system and remove the inflator module when removing the steering wheel. Leaving the SIR system on could result in deployment of the air bag and possible personal injury.

• Disconnect the negative battery cable, and remove the steering wheel.
• Remove the bumper and the carrier snapring retainer from the steering shaft.
• Use a lock plate compressor screw tool to install the lock plate compressor screw in the upper steering shaft. To keep the shaft from telescoping, tighten it to 40 inch lbs.
• Using the lock plate compressor tool, install on the upper steering shaft, tighten it to depress the shaft lock. Remove the shaft lock retainer, the compressor tool and the steering shaft lock.
• Remove the turn signal canceling cam assembly. Put the turn signal switch in the "N" position and remove the upper bearing spring.
• Position the turn signal switch so the mounting screws can be removed through the holes in the switch and remove the turn signal lever.
• Remove the turn signal switch-to-steering column screws and lift the turn signal switch. Remove the wire protector and disconnect the turn signal switch connector.
• Use a terminal remover tool to disconnect the buzzer switch wires from the turn signal switch connector. Remove the buzzer switch assembly with needle-nose pliers.
• Place the lock cylinder in the ACC position, then remove the lock retaining screw and the lock cylinder set.
• To install the new cylinder lock, reverse the removal procedures.
• Tighten the lock retaining screw to 22 inch lbs., the turn signal switch screws to 59 inch lbs. and turn the turn signal lever screw to 53 inch lbs.
• As part of the final replacement procedures, check the operation of the switches and the steering column.

SOURCE: 1992 olds cutlass ciera keeps stalling out is

could be a crankshaft position sensor located on the back side of the engine. There is a two wire plug on it and should be close to the freeze-out plugs. you will need an 8mm wrench to remove it.

SOURCE: car wont start

don't know if this is needed now, but try the crank sensor.  I had the same problem years ago, and the crank sensor was the problem.  this is common in many 3.8 engines. i'm currently looking at another ninety-eight, and guess what...the crank sensor was replaced for the same reasons.