Hi Scotty I have a 1995 camaro 3.4L V6 and it won't start it cranks but won't start I had a mechanic tell me it was the ecm because it does not communicate but I wanted to know your thoughts on what it could be thanks?

if you lose communication, either computer is bad, or a sensor or wire feeding the computer is bad which shuts down the computer. So, check wiring and sensors first.