2002 Toyota Corolla Plugs

2002 TOYOTA COROLLA
200,000 MILES
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DAVE1310
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  • 64 POSTS
Someone when I purchased the car just had changed plugs, upon further investigation he put in Autolite XP-not NGK as recommended. Toyota is very specific when it comes to plugs, are autolites the same as NGK and can these wrong plugs cause a misfire PO300 causing the CEL to come on?
Jun 11, 2015 at 11:51 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
I kind of doubt it with the plugs but it may be a coil pak/plug wire problem instead. If you have to replace a coil make sure to use factory coils as aftermarket ones seem to give trouble.
Jun 11, 2015 at 12:11 PM
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