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SN95 Cobras
Fuel injector leak testing
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<blockquote data-quote="mwolson" data-source="post: 13779992" data-attributes="member: 16006"><p>Put a fuel pressure gauge on your fuel rail, turn the key on. The fuel pressure should go to 39 PSI. Turn the key off. If the fuel pressure stays at 39 PSI for at least several minutes, then you know the injectors are not leaking. If the fuel pressure leaks down quickly, then you may have one or more leaky injectors, a bad fuel pressure regulator or a bad check valve in the fuel pump.</p></blockquote><p></p>
[QUOTE="mwolson, post: 13779992, member: 16006"] Put a fuel pressure gauge on your fuel rail, turn the key on. The fuel pressure should go to 39 PSI. Turn the key off. If the fuel pressure stays at 39 PSI for at least several minutes, then you know the injectors are not leaking. If the fuel pressure leaks down quickly, then you may have one or more leaky injectors, a bad fuel pressure regulator or a bad check valve in the fuel pump. [/QUOTE]
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Fuel injector leak testing
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