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gen1,

I tried this test last night. I either didnt follow the instructions correctly - most likely, or my check engine light isn't working - less likely.

here is what I did. at the beginning of this thread, I think there are 2 methods to get codes - with the check engine light, or without. with the check engine light,I think it tells me to just ground the STI. so, I took a paper clip, stuck it in the STI plug, and then wedged the other end into the sheet metal where the hood prop mounts. Decent wedge, but not a perfect connection.

I turned the key to run, and heard extra relays come on, and stop. including the fuel pump. sat there for 2 minutes, and no light.

so, feeling like I need to ground more connectors, or make the STI a better ground.

What I don't know is - where is the check engine light on a Gen 1, 1988 early dash? my book doesn't even tell me. nor does google.

thanks g1
 

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There's a link in my signature that talks about how to do this, though the picture of how to connect up the harness is broken. I had pulled the picture from here: http://www.thorssell.net/hbook/eectest.html

The rest of the procedure is laid out, and I have codes listed, along with what they should mean. I used a piece of flattened 12 gauge solid-core "romex" house wiring, because it was lying around. I flatted it with some pliers.

The bulb I also had lying around, and some wiring for it. I still have that thing; works well. I can build one easily, provided I find another socketed mini light (I think they're sold 3rd party, never bothered to check).
 
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