Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

1995 Chevy Astro

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2 years 10 months ago #49696 by Cheryl
1995 Chevy Astro was created by Cheryl
Looking at block integrator and block learn they are at 150 at idle and come closer to 128 at 2500 rpm. It runs bad. Map sensor reads 1.5 volts at idle. Coolant temp sensor reads correctly. Egr valve not stuck open. What is the running fuel pressure spec you guys have from experience? I’m at 49 psi at idle. 

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2 years 10 months ago #49697 by Chad
Replied by Chad on topic 1995 Chevy Astro
Spec is:

 1. Ignition "OFF" for 10 Seconds.
 2. With ignition "ON," engine "OFF" and fuel pump running, pressure should be 380-420 kPa (55-61 psi).
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right. :-)

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2 years 10 months ago #49698 by Cheryl
Replied by Cheryl on topic 1995 Chevy Astro
I only get 52 at the fuel pump prime

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2 years 10 months ago #49699 by Cheryl
Replied by Cheryl on topic 1995 Chevy Astro
It doesn’t bleed off instantly or anything. I might be on the wrong track with going after fuel

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