Cherokee cranks over no start ,no gauges

[scottz]

I have a 97 cherokee sport 4.0 auto 4x4 over 200.000. engine quit, It just cranks over but no start. Also I have no working gauges when the key is on. Had it towed to shop. They hooked it to the machine, Said it was the computer. Bought a good used computer at salvage yard. They hooked it up still same thing. No gauges no start. All the fuses have been checked and all work. could it be the crank sensor? If so why no gauges? Thank you for your support. Scottz

	Crank position sensor A crank sensor is a component used in an internal combustion engine to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control ignition system timing and other engine parameters. Before electronic crank sensors were available, the distributor would have to be manually adjusted to a timing mark on the engine.

[LauraBoston]

how did they figure it was the computer? if the computer's bad it will set a cel, and give a pcm internal code..on the other hand they can do a cluster test with the drb to see if the clusters good. (if it's at a dealership...is it at a dealership?)
the computer has to be programmed with vin, country code and so on so it works...normally a computer from a salage yard won't work because it's already programmed.
did the shop check for compresson?
A cam and crank sensor will keep it from starting but set a code.

	Crank position sensor A crank sensor is a component used in an internal combustion engine to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control ignition system timing and other engine parameters. Before electronic crank sensors were available, the distributor would have to be manually adjusted to a timing mark on the engine.

[Bounty__Hunter]

ASD auto shutdown relay?