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Old 07-15-2016, 03:47 PM   #18
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 45,661
 

2003 L-Series 3.0L Sedan
Default Re: 02 SL2 Injectors not pulsing

I've never checked crank sensor output when mine failed soft (intermittent). After replacement the engine started up as of nothing ever occurred. Bench tests with a multimeter showed resistance rising as heat from a heat gun heated it. It never occurred to me to try measuring voltage output of scoping it when I had the opportunity. Technically, output will be generated as a piece of iron (screwdriver tip or shaft passes by) with an AC voltage, rising as metal is passed by quickly. Whether you can measure this on a multimeter or not is questionable. I presume wiring is intact but you never know.

The pcm is working insofar as controlling the fuel pump because the pump signal is used twice; turning on pump for two seconds at key on engine off time and during starting/engine running.
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