Question about 2004 Lincoln LS
PO122--ETC Throttle Position (TP1) sensor Low Input
PO223--Throttle Position (TP2) High Input
PO354---Ignition Coil D --On an LS, that is not
a used code,another engine it would be cylinder #4
What I believe you have,having diagnostic experience
and also owning a 2004 LS,is a Bad COP Ignition Coil
on cylinder #4 that is bad enough to spike the PCM
& come back on the TPS Sensor
You ignore the codes and buy 1 new coil for $59.00
and put it in #4
If that doesn't help,remove the new coil and walk it to
another cylinder and drive a couple days,continuing
to move the new coil.
If you had some very expensive diagnostic equip
you could go with a different approach
The last thing you EVER want to do, is go to
a dealer,you may leave there the same as you were,
and a bill for a grand per visit.
IF you have a V6 and I hope you do not,
then if you get involved with cyl #1 thru 3 where
you have to remove the upper intake,do the spark
plugs on that side and all new coils while in there.
Save those coils for your future diagnostics
These coils fail at a rate of 1 or 2 a year on all fords
Posted on Mar 26, 2011
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Posted on Jan 02, 2017
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