2002 trailblazer 4.2 motor
I have put camshaft sensor last week and 5 days later came to stop sign and just died no start.... did some diagnosing and found it might have been crankshaft sensor replaced it and started once and died a minute later and now will not restart please help

 

Is the check engine light on? If so read the codes. Also look at the wires going to both sensors to check for damaged wires.

 

no check engine light is on wires look good no Fray or nothing try it again this evening and seems like it's getting like a 2/3 second burst of gas and then it just dies again turn the key off cycle it turn key back on same thing 1 or two second burst of gas and shuts back off will not start there is no check engine light on I disconnected battery going to let it sit overnight see if that does anything with the PCM on resetting it without taking it to a dealer to hook it up or mechanic to hook it up and throw away $125 need some help here I can usually figure stuff out on my own but this is got me stumped

 

Are you getting fuel pressure?

 

Yes I am and why I am stumped

 

Sounds like VAT's, do you have a security light?

 

we have a security light but is only active when key is out and doors are locked then it comes on, even with this issue it has not changed

 

Not changed, does this mean it has done the same thing with the security light? Do you have a key fob (remote) that you lock/unlock the vehicle with? If so, have you used the key to unlock it with locking it remote? (fob). This still acts like a vat problem, give it a try with unlock, lock using the fob, several times

 

we have never had a key fob since we bought it and security light has not been an issue only time its comes on is when we lock all doors and then shut drivers door but always goes off when door shuts, so kinda lost with this issue

 

This the only light that has been on i cant get it to shop for code THE SECURITY LIGHT HAS NOT BEEN / WAS NEVER ON thats why im kinda stumped resetting vats system easy peasy done..... this issue not so much I just want our truck back