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ase_master327, Subaru Technician
Category: Subaru
Satisfied Customers: 5288
Experience:  +15 years experience with Subaru vehicles. Bumper to bumper diagnostics and repair.
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Correct Gap and Best Spark Plug for EJ20G

Resolved Question:

what is the correct gap and the best type of spark plug to buy for my ej20G?
Submitted: 6 years ago.
Category: Subaru
Expert:  ase_master327 replied 6 years ago.
Well, that engine was used for quite a few different applications.. So I need the year and model of Subaru that it is in, to be able to give any kind of accurate answer.
Customer: replied 6 years ago.
i thought I replyed but there was a page error, I have a 1990 right hand drive subaru legacy GT. ej20G
Expert:  ase_master327 replied 6 years ago.
Yes, I have been getting some errors on the site today as well.. They have been reported.. Was yours something like server failure or similar?

Anyways.. have the 'old style' EJ20G engine..
Here is the recommended plugs and gaps on this engine:

NGK ---------------- PFR7B
The gap on these spark plugs should not be adjusted as that is done when they are manufactured. They are gapped to 0.8MM..

13 - 17 ft lb (18 - 24Nm)
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