Help please: 95 Northstar no start problem

[JMSMAUTOMOTIVE at cs.com]

My first incling is that the ecu is loosing, not getting, or getting the 
wrong synk pulse, the  ecu and dis unit both get signals from the cam and 
crank sensors. the ecu uses the crank signal as a referance untill it sees a 
cam signal to ''''phase" itself. both sensors go through the dis module 
(there are actually 2 crank sensors) they plug into the dis with a  4 
wire-crank signal- connector and a 2 wire-cam sensor-connector. i would check 
all three with a waveform vewer to make sure you are getting a signal. if you 
dont have access to a wave form vewer, you can use a dvom set on ac volts, a 
good sensor will make about 1 volt ac. if the ecu doesnt see a cam signal in 
2 crank revolutions it will shut down the injectors. good luck. joe

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