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Jeep Wrangler YJ
YJ General Discussion
'93 Wrangler YJ 4.0 doesn't start: turns over, good spark, 40 psi at fuel rail
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<blockquote data-quote="Flyer58" data-source="post: 437080" data-attributes="member: 18629"><p>Are the spark plugs wet after cranking? The injectors may have pressure but no signal to open. A shot of starter fluid or engine fogger may get the engine to fire off and if it immediately quits then you know it's not getting fuel past the injectors.</p><p></p><p>There's probably a way to test each signal and also check the injector coil ohm for continuity while you're there.</p></blockquote><p></p>
[QUOTE="Flyer58, post: 437080, member: 18629"] Are the spark plugs wet after cranking? The injectors may have pressure but no signal to open. A shot of starter fluid or engine fogger may get the engine to fire off and if it immediately quits then you know it's not getting fuel past the injectors. There's probably a way to test each signal and also check the injector coil ohm for continuity while you're there. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
'93 Wrangler YJ 4.0 doesn't start: turns over, good spark, 40 psi at fuel rail
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