1983 Lincoln Mark Vi Mother That Seems Possessed Starts Easy Intermittently

80,000 MILES
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My mother has a Lincoln Mark VI that seems possessed. It starts easy but intermittently won't hardly run, loping wildly and missing and backfiring thru exhaust. Is a v8 with gas throttle body. Have tried fuel additive and injector cleaner but suspect it is a bad sensor or shorted wire sending bogus info to the electronic computer, which then retards the timing to compensate. Any ideas or suggestions? Thanks.
Dec 28, 2012 at 8:40 PM
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ASEMASTER6371
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i would start with fuel pressure test. then i would do a back pressure check for the cat converter

Roy
Dec 28, 2012 at 9:04 PM
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