Diagnostic interface

JJMECHMAN

MEMBER
1996 SUBARU LEGACY
107,000 MILES

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?

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HMAC300

MECHANIC
48,601 POSTS

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
Shop: DALES� AUTOMOTIVE
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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