Hi all, I am writing here because I have a problem with my 94 vortec 4.3 tbi blazer s10,
I have ignition and gas but it won't start, it just makes a flame explosion when I turn on the throttle.
the spark is blue so ok
ignition order ok
crankshaft and ignition head 1st cylinder ok
coil ok
icm ok
fuel pressure ok
new spark plugs
spark plug wires also
cts new
sparkplugwire new
I don't know where to look anymore? because I find so many comments, please help me

 

Explain "flame explosion"
Meaning you get it backfiring through the TBI when you open the throttle?

How savvy are you around cars? (Asking because you state that all components are o.k.)

How do you know that ignition and ignition order are correct?

 

hello , i give some news , i put a new distributor and it runs, the problem was the pick-up coil .