Diagnostic interface

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I recently bought an elm 327 OBDII code reader to try and identify a problem with starting but I found that the plugin port was not there and after a lot of head scratching I discovered that I needed to use the subaru 9 pin plug so I have got one of them coming in the post now but I also noticed two wires with big green terminal blocks on them next to the 9 pin plug do these My question is do they need to be connected to something or are they not involved with the scanner process?
Do you
have the same problem?
Thursday, December 1st, 2011 AT 10:19 AM

1 Reply

I'm sending pics of where to hook up for codes. Also here is atip to keep in mind from our site.
Posted By: Jonman Gee Flag Post For Monitor Review
Date: 9/5/2007 11:40:38 AM

All of the above codes sometimes set in the H 4 subarus with the 1.8L engines. The dealer replaced and CHARGED for 15 different sensors and a new computer to fix this car.
Guess what, that didnt fix it. The customer came to me and begged me not to send them to the dealer for anything because of the recent catastrophy. I checked the timing first
and found that there are two marks on the crank gear. The correct mark is the line on the back of the gear on one of the crank teeth. Timing was good on this car. Beleive it or
not I put a known good coil pack on the car and drove it for a couple days and of course the car ran great (the car also ran great before but kept setting missfire codes with no
missfire)! Needless to say that these coil packs wiether they test good or not, or wiether they look good and the car runs fine, do not eliminate the possibility of these things. The
car is now fixed and the customer baked me a fresh apple pie for taking care of something that the subaru specialists themselves could not figure out. It took me 2 hours to fix
the car. They tried for 3 DAYS!

The moral of this story is to never eliminate ANY possible reason for anything. Take a chance with the coil pack because more than likely its the root of all your problems.
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Thursday, December 1st, 2011 AT 2:23 PM

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