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Thread: Code

  1. 02-10-2019, 06:44 PM #1
    mgm6397
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    What could be the most likely cause of a Ford PO174 code thank you
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  2. 02-10-2019, 08:28 PM #2
    gadget73
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    On what?

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

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  3. 02-10-2019, 08:53 PM #3
    EaOutlaw1969
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    seems to be a lean code ( check for broken or disconnected vacuum lines ) but since I do not know what your working on this is the extent of any help I can offer.
    2000 MGM LS Palm Beach Edition a work in progress
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  4. 02-10-2019, 11:20 PM #4
    sly
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    Here's a nice little write-up.
    https://www.aa1car.com/library/ford_lean_codes.htm

    That said... could be a roached sensor, cracked exhaust manifold, loose manifold, loose downpipe, loose EGR pipe... Lots of stuff coming loose could cause that.

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