Fuel pressure for an 88 350 ?

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08-30-2017, 08:08 PM

JTWard

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Join Date: Jun 2015

Location: SE corner of PA

Posts: 48

Fuel pressure for an 88 350 ?

Hi there, I have a 88 K5 Blazer with the 5.7 liter V8 and I'm replacing the fuel injectors, But I don't know the fuel pressure should be ? Any help is welcomed !

Hope if anyone here is in Texas, I'm praying for you.

08-31-2017, 12:26 AM

da67goatman

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Should be around 13psi for TBI unless your engine is really modified.

08-31-2017, 05:53 AM

JTWard

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Location: SE corner of PA

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Quote:

Originally Posted by da67goatman

Should be around 13psi for TBI unless your engine is really modified.

Thank you, been having trouble with the TBI system.

08-31-2017, 08:00 PM

AJBert

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Location: In the Colorado mountains

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TBI is a really simple system, believe it or not. Two injectors, a FBR, return system and stand alone computer for the injectors. Can't get much simpler.

Though, "computer" may not be the best term to use.

09-02-2017, 07:02 PM

Challupa Batmann

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Literally just got done rebuilding my throttle body, thought this was a cool video if i wasn't trouble shooting already, probably would have done the adjustable fuel pressure like he did here.