I have a cold start issue with my B16A2 and recently I also have a stumble on low rpm acceleration. High rpm acceleration is fine.
I have 2 CEL codes (22 - VTEC Oil Pressure Switch and 6 - ECT Sensor (Engine Coolant Temperature)) I'm debugging and my wire colors don't match any schematics I can find on this JDM B16A2 engine.
My harness was redone for me by Rywire so I could drop this engine in my 97 Civic EX. There are two 2-pin connectors on the harness that have been labeled VTEC and one 1-pin connector labeled TW (I think that's water temp but not sure). I included a pic for reference.
Sensor 1 in pic is labeled TW and has red/yellow and black/green wires. Sensor 2 is labeled VTEC and has yellow/green wire. Sensor 3 is labeled VTEC and has yellow/black and purple/yellow wires.
The troubleshooting guide in the manual I found online talks about the 1-pin connector, yellow/green wire as belonging to the coolant temperature sending unit. But that's labeled VTEC.
I'm totally confused! Can anyone tell me which sensor is which by looking at the pic?
Thanks!



[IMG]local://upfiles/24472/89A7F45CF21948BA9B739A06D5E40B04.jpg[/IMG]