Quote:
Originally Posted by GregCrowe
Thou shalt not spend a ton of money replacing injectors without ohming out the coils first :P
I keep seeing more threads with people continuing to recommend injector replacement and it turns out to be something to do with the coils.
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I understand your concern.
I have never tried it but there is a relatively inexpensive tool ($150
+) where you can touch the plug boot with motor running that will tell you whether plug is firing or not.
http://www.sparkplugsensor.com/
Also, it is my understanding, one coil fires 2 cylinders. Therefore, if you determine 2 sets of plugs corresponding to one coil are both not firing obvious suspect would be coil.
Having said that, based on my experience (two out of 6,700
+ production), coil seems to be less of a weaker link then injectors. I suspect introduction of ethanol seems to have contributed to this. Just my thoughts.