Were you having this issue, before you worked on it? If the computer doesn't see an rpm signal, it won't pulse the injector/s. With bypass ignition system and o/p switch in the fuel pump circuit, it is possible to have spark at the plugs and fuel pressure,engine cranking, even though the computer doesn't see an rpm signal,but, no rpm signal, no injector pulse.

Answered by JDL (expert)
14,416 answers provided

If TBI, can you see injector spray pattern, engine cranking?

Answered by JDL (expert)
14,416 answers provided

Blazer was running fine and just shut off like someone had turned off ignition switch. Had bad pickup coil in distributor so I replaced distributor, cap, rotor, wires. Can smell and see fuel in tbi after cranking. Where do I go from here? Thanks Chris

Response from emmell2560
1 question asked

if u replaced the complete dist. u need 2 remove it get the motor on top dead center then put it back in with the rotor pointing to the #1 wire on the dist. cap.

Answered by cadieman (expert)
2,860 answers provided

Thought It might be a timing issue will try in am when i can see. Was having a hard time reading degrees on pointer to find zero. Do you know which end of pointer 0 is at?

Response from emmell2560
1 question asked

Also check the fuel pump and oil pressure switch

Answered by rasmataz
68 questions asked

I have fuel in tbi. where is the oil pressure switch? Do you mean sending unit? and how do I test it to see if it's bad?

Response from emmell2560
1 question asked

if u removed the dist. and didnt put it back right the engine is out of time.

Answered by cadieman (expert)
2,860 answers provided

parts store will have the firing order and location of #1 wire on the dist.cap.then install the wires going clock wise. gl

Answered by cadieman (expert)
2,860 answers provided

F/O clockwise 165432

Answered by rasmataz
68 questions asked