Feedback please, on E3 plugs. I've used them in my 99 Avalon and was quiet amazed at better response and fuel MPG. Thinking on useing in my 3.5l 2003 montero sport. Any feedback ?

Michael Brazile

Asked by Michael Aug 19, 2014 at 10:37 PM about the 2003 Mitsubishi Montero Sport XLS

Question type: Maintenance & Repair

3 Answers


The only thing I have heard about them is if you have a weak coil they will misfire and or fry the coil, very few rigs this has happened too but it is a possibility. Otherwise they seem to work quiet well.

Best Answer
Michael Brazile

Tennisshoes, how to ck 4 weak coil?


Check the ohms on the primary and secondary windings, if I remember correctly they should be about 5K ohms on the primary and 8K on the secondary, but check your service manual to be sure. The other way is to measure the actual voltage output the coils can produce, this requires a spark output tool that has a variable gap and the voltage output will be clearly marked at each graduation, most start at 15K volts. If you have the tool and do this test make sure you are not grounded and far enough away from the connectors or you can get quite a jolt. Your rigs coils should ba able to generate about 60K volts. You can purchase hotter coils if you like, MSD makes some hot ones.

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