direct ignition coil for 3.4L 5vze Gen1 Taco ... when do they need changed for new

JayQQ97

MW surVivor ... clutched. 346k on the 0D0

105$ each (need 3) ... MSRP is 152$

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so i've got 282k on the originals nearing 26yrs
wanting to know when or how they might go foul

will it throw a code?
will performance decline be noticeable
misfire?

is there a certain way to test them with diagnostic tool?
 
I would think if the coil were failing that a misfire code would be generated.

Can you run a scan thru the OBDII port?
 
I would think if the coil were failing that a misfire code would be generated.

Can you run a scan thru the OBDII port?

i have been looking at a scan tool
my research into this is in its infancy

resistance test with a multimeter to see if the part is within specs?
 
this is a non-issue at the moment, thank goodness!

Rough Idle​


One of the tell-tale signs of a bad ignition coil or bad spark plug is a fluttery or inconsistent idle.
 
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