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With key on engine not running pressure should be 9 to 13 psi

Engine at idle pressure should decrease by 3 to 10 psi on a throttle body.

On a multi port injection key on engine not running pressure should be 41 to 47 psi.

Engine running at idle pressure should decrease 3 to 10 psi.

Central multiport fuel injection key on not running should be 58 to 64 psi.

Engine running at idle pressure should decrease 3 to 10 psi.

Central sequential electronic fuel injection key on not running pressure should be 55 to 61 psi. Engine running at idle pressure should decrease 3 to 10 psi.

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Q: What is idling fule pressure for a 1995 s 10 with 4.3 vortec?
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