hellosubaru

Ok, thank you all for the replies. It sounds like I'll be pulling the dash at some point, as soon as I can make some room in the garage. Also, does anyone know where to get a heater core, so I can do some preventative maintenance while I have it apart?

Thanks guys. Is there anywhere I can cut a hole to access the area I need to get to? I was hoping it wasn't the "pull the dash" answer, but if that's what it's got to be, then so be it! Thanks again.

A while ago, some mice got into my '86 GL, and made a hell of a mouse resort for themselves in the heater ducts, fan, and around the heater core. I've gotten most of the insulation they used out of the ductwork and fan, but I'm not sure how to remove it from around the heater core since it's buried in the dash. Does anyone have any advice or suggestions on how to get it out from around the heater core? Thanks!

Yes, I understand the signal goes from the dash to the ECU. I performed the signal test while driving the car. I do agree it seems really weird that there is no VSS code. Does anyone know if the signal from the reed switch is a square wave? If it's not, then that's why I wouldn't see anything on the meter. -Jason

I've hooked up a digital square wave meter to the VSS wire to the ECU, and I get no pulse. Plus, the launch control feature of the ECU doesn't disable. The launch control feature disables with VSS sees > 2mph from the VSS. Thanks for sticking with me on this. -Jason

Yes, this is exactly what I did. I ran a ground wire to the black wire on the connector, and ran a wire from the VSS wire on the ECU to the yellow wire on the connector. Thanks again, -Jason

I tried grounding that connector I posted a picture of above, but no dice. Any other suggestions or ideas? I'm also getting no CEL for a missing VSS sensor. EJ20 ECU. Thanks, -Jason

I scrounged around a little more under the dash, and I found this connector. It's not black, but the wire colors sound like they are the correct color. Is this what I'm looking for? The connector was taped down to the wire loom up by the firewall under the dash on the driver side.

So, I looked for 5-10 minutes or so for the black 2-wire connector behind the cluster, but couldn't find it. Is it up under the dash somewhere? Btw, this is the wire I tapped for the VSS signal:

Awesome, thanks for the help. I'm excited to find this connector after work! I'll keep you guys posted and post a pic if possible.

This is for the EA82, correct? So it sounds like I tapped the wrong wire. I will hunt for this connector after work today and let you guys know if I can find it. Thank you.

So, I'm hoping I did this correctly. I found I wiring diagram, and it looks like the VSS/reed wire I want to tap into is pin 4, Yellow/Red on a round connector on the back of the instrument cluster. Is this correct? I tapped into this, but it is not producing a square wave like i think it would.

I'm trying to find the VSS wire to hook up on my '86 GL carb. I have the cluster pulled currently, but I'm not sure which wire it is. I see posts saying it's marked as the reed switch, but I'm not finding any such markings, and I don't have the EA82 wiring diagrams. Could someone point out the correct connector and wire color (picture would be a bonus!). From the few posts I found while searching, I couldn't find anything descriptive enough for the EA82. Thank you, -Jason

Finally, an update! In late December, I finished up with installing the new engine/trans/everything else. I took it for a few test runs, and everything was running great. After a few days, I started wrestling with drive-ability issues (erratic idle, misfires, no power, etc). I couldn't tell if the ECU was still relearning, or if there was an issue with one or more of the sensors. It kept going down hill, until it wouldn't start anymore. I finally found out it wasn't running correctly due to it constantly fouling spark plugs. I did a fuel pressure test on the feed side, and had 66psi of fuel pressure. Ouch! I tested the return side, and there was almost 80psi, so it looked like I'd be replacing my return fuel line. I think it was a combo of being a very small (1/8") return, blocked, and possible a pinched hard line. After replacing the fuel lines, the car ran great, and has continued to for about 2-3 weeks now! Here are some pics of the finished product: Next on the list of things to do: hood scoop for IC, lighter front bumper, fix exhaust, and give it a little more lift.

I thought I'd post my end results in case this helps anyone. I've finally got the car running reliably. I did another fuel pressure test shortly after I did my initial fuel pressure test, but this time I did it on the return side instead of the feed. There was ~80psi on the return, which confirmed my suspicion that something was wrong with the fuel lines. I made some SS PTFE feed and return lines, and replaced all of the lines from the tank to the engine. After driving the car for a few days now, the plug have cleaned themselves up (they aren't completely fuel fouled black anymore), and the car is running great, smooth as ever.