85 Celica Tech. Missing and rough idle.
It's an 84 block and head with an 85 crank and intake manifold in an 85 Celica.
It runs. Through our troubleshooting, we pulled #1 plug wire and the engine speed/behavior did not change, but we did get spark from #1 SP wire when we got it close to the plug/block. When pulling #2,3,4 wires it roughed up the idle a lot more. It appears as though all the injectors are firing, but the only tool we have to verify this is our ear on the end of a screwdriver.
Also, the tachometer does not work,
There's a single solid blue wire that came through the firewall with the wiring harness that I can't find a place to plug it in. when the car is running, it is hot (14VDC) and we used an ohmmeter to verify it goes to the connector on the air valve (right under the intake manifold) One end of the plug was .7ohm to our blue wire and the other was .2ohm.
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