• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

Diagnostic connectors


MentalJunkyard

New Member
Joined
Jul 26, 2008
Messages
4
Vehicle Year
1987
Transmission
Manual
Hey, I'm new here, have a little problem I can't solve. I have an '87 Ranger which started idling rough and is really down on power. i changed the cap, rotor, wires and plugs, as they were all REALLY old.... no change. Next step is to check for codes, right? So I get my scan tool, open the hood and look for the connectors. I found the big one on the passenger side, between the air cleaner and the fender, but the single pin STI (self test in) is nowhere to be found. Isn't it supposed to be in that same harness? :icon_confused: I'm kind of stuck until I can trigger the test sequence, unless I want to keep throwing parts at it, which i don't. Anyone have a wiring diagram that would tell me what color the wire is that I'm looking for?

Thanks

Calvin K
'87 Ranger
'89 XR4ti
 

Sponsored Ad


Sponsored Ad

TRS Events

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Ranger Adventure Video

TRS Merchandise

Follow TRS On Instagram

TRS Sponsors


Sponsored Ad


Sponsored Ad


Amazon Deals

Sponsored Ad

Back
Top