fuel pressure - JeepForum.com

 
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post #1 of 5 Old 02-02-2013, 10:47 AM Thread Starter
richh789
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1987 YJ Wrangler 
 
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Location: myrtle beach
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fuel pressure

With the key in the on position, when I press Schrader valve, fuel comes out, but stops.

My question is, should fuel pump keep pressure up, or does it need yo be running to maintain pressure?

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post #2 of 5 Old 02-02-2013, 11:19 AM
GotMoose
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The fuel pump is controlled by the computer. It runs: a few seconds when the key is turned on, at cranking and when the engine is running. The computer turns it off the the engine is not running.
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post #3 of 5 Old 02-02-2013, 04:12 PM Thread Starter
richh789
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1987 YJ Wrangler 
 
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I wasn't sure. Having no start prob with spark. I figured to fuel.

After comp test I learned the pass side bank is completely flooding. About a teaspoon full in tester each cylinder
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post #4 of 5 Old 12-01-2013, 05:42 AM Thread Starter
richh789
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Ended up being a bad socket for ecm relay
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post #5 of 5 Old 12-01-2013, 07:55 AM
coralman
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1998 ZJ 
 
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The fuel pump relay or the main plug to the pcm? Just asking.

Info on projects and repairs categorized by system
http://www.jeepforum.com/forum/f13/c...-faqs-2863665/

Originally Posted by HighLonesome
lol...if life is as a simple as a 5.9 making you happy, I'd say go ahead and buy it on impulse. ZJs are the way of Zen. Wax on, wax off
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