 fuel pressure test., test while engine is turning or not |
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| Michael N |
 Jun 12 2005, 06:33 PM
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#1
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Certifiable  Group: Members Posts: 1,426 Joined: 6-June 04 From: San Jose, Ca Member No.: 2,164 Region Association: Northern California  |
I am trouble shooting a fuel injection system and need to know when adjusting the fuel pressure @28psi, should I be getting that reading with the starter turning or just with the ignition turned on so the fuel pump turns on.
Thanks, Michael |
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Replies(1 - 4)
| ClayPerrine |
Jun 12 2005, 06:50 PM
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#2
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Life's been good to me so far..... Group: Admin Posts: 15,470 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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Just hotwire the fuel pump (jumper the relay) and set the fuel pressure. The pump is electric,so it doesn't matter if the engine is running or not. But it's easier to do without worring about the running engine.
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| Michael N |
Jun 12 2005, 07:11 PM
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#3
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Certifiable Group: Members Posts: 1,426 Joined: 6-June 04 From: San Jose, Ca Member No.: 2,164 Region Association: Northern California |
Let me start by saying, Yes, I know I am an idiot. When I test with the fuel pump on it will only read max 20 psi on the fuel pressure gauge. I can not adjust the fuel pressure regulator to read any higher. If I test with the starter turning the pressure will jump much higher.
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| Bleyseng |
Jun 12 2005, 08:00 PM
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#4
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
I usually check it with the motor running, hooking up the gauge on the pressure side of the fuel lines....
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| Michael N |
Jun 13 2005, 12:03 AM
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#5
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Certifiable Group: Members Posts: 1,426 Joined: 6-June 04 From: San Jose, Ca Member No.: 2,164 Region Association: Northern California |
Thanks for the replys....I was able to get it set properly. Still not the problem but I'll continue to work on it.
Smellin' gas all day has me lightheaded....MUST TAKE BREAK NOW! |
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