[downest]

How do you read codes from the ECU with OBD1? I thought the CEL would flash the code out, but it doesn't. I know I should be getting a couple for coolant temp sensor and the VTEC pressure switch, but it just comes on solid after the key is in for a couple of minutes.

 

[mattminerDOTcom]

you have to ground one of the ecu pins (i forget which) then the CEL flashes the code.

 

[downest]

I looked around and it said to ground D4. Do I leave it grounded all the time or just when I want to see the codes?

 

[mattminerDOTcom]

just when you want to see your codes. IIRC thats alos the ignition timing jumper. I have/had a switch installed to turn it on and off.

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[RamaCrx]

Oops didnt see you post with same.