Got a set of Noids and checked the fuel injectors. They all had signal (flashed) while engine cranked. I checked spark at plugs again & this time they were weak (yellow spark) not blue & strong. I did a compression test & the numbers are low - 60psi but my battery is weak & the engine is cold so not sure if this test is reliable. I'm thinking it'* ignition related but I'm lost at the moment. Any ideas?

Have you tested the coils?

not yet. I thought I had good spark initially so I didn't check. I'll check tomorrow.

Can crankshaft position sensor cause no start? Going to get a scan tool to see if there are any codes.

Yes it can. It'* a hard sensor to test with out the proper tools.

Checked the coils & they are OK. Checked connections again. Put 3 gallons of gas in just to be sure it wasn't out. Hate to say it but--I give up. Going to have it towed to a shop.

Let us know what they find.

update: Shop checked fuel, injectors, ignition & found no problems. Checked compression: 30-0-75-85psi. Not good. Need engine rebuild or another engine.If i get a used engine, will I need to get the pcm also? Anything else?

As a general rule of thumb, yes.

You can more than likely keep your existing computer if and only if the donor car is both from the same year, make, and model; and has an identical engine.

Talked to mechanic that will swap engine for $800 including engine from '99 cav with 96k. Hope to confirm tomorrow.