07blkvette

I was wondering if someone could give me some clues to what might be going on. A friend f mine has a 90 vert and it starts but on stays running for 10 sec and it shuts down. His grandson changed the plugs and it is still doing the same thing. Any help would be greatly appreciated. They also had fuel pump checked.

joe paco

there is a thread on here from today, "no fuel,' that had the similar issues. several others the same way. you will eventually need to know if the fuel rails have pressure. needs a gage and fitting but easy to do. take a look at the thread.

joe

RLG

can you keep it running by pumping the gas pedal?

When my 90 did that it was the IAC.

jfb

See if there are any error codes stored.
Use a timing light to see if spark is continuous to when it stops running.
Use a fuel pressure gauge to see if fuel pressure holds up to when it stops running.
Use a noid light to see if an injector continues to pulse up to when it stops running.