Hi I have a 2000 Blazer 2 days ago I started my truck drove 2 blocks then it backfired and stalled ,it has not started since , I got it home by a tow and did the following checks
checked for spark old school way screwdriver in coil wire ,had good bright orange/yellow spark
pulled no 1 spark plug out ,connected it to no 1 wire layed against manifold ,cranked it nice consistent blue/yellow spark
did valve timing test all good and lined up perfectly
there is fuel pressure at the fuel line by releasing valve ,while cranking engine
everybody is telling me the crank sensor is malfunctioning ,but it does not shut down the fuel injector , when I pulled the no.1 spark plug it was dry as a bone ,
I was reading online that a crank sensor shuts down ignition or spark ,it also said the Security Pass lock system will shut down my injector and make you think it is fuel issue . Does anybody know how I can find out exactly what I should be concentrating on ,i don't have a lot of money ,I am on a disability so the dealer is definitely out of the question ,somebody pls shed some light for me