'94 T-Bird 4.6L Excessive fuel [ chapter 3 ]

getupand · 2003-08-23T18:02:11+00:00

Several of you have provided helpful diagnostic tips on my two previous posts on this subject. Thanks.'nother coupla questions.While checking fuel pressure with KOEO, the pressure immediately came up to 35 psi, then dropped back down toward zero. With KOER the fuel pressure remains a steady 31 psi (engine cold). At shutdown, the pressure drops to zero in about 3 to 4 seconds.Is that indicative of one or more injectors stuck open? (All 8 injectors are pulsing.)Would a misfire between two spark plug wires likely damage the injectors of those two cylinders when the injector of one was open during intake stroke while the other was firing?

Aug 23, 2003 20 Replies

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Arthur Hardy 23 years ago

On my 95 4.6 the manual (Chilton) shows that the plugs are in parallel after the secondary coil. But the Chilton's is wrong, If you go over the coil with an Ohm meter you will see that the secondary is not grounded to anything but to the other plug.

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