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Thanks for the help. I tried to delete the post because i found a ground, but i dont see where to delete a thread. Since i couldnt find where to delete, i changed it to what the reading i got means.I forget where it is on the connector. But you can use a good ground on the body like the mounting bracket for the ecu. You will want to test to ground on both the fuel ecu and the icu since they both use the two circuits in the sensor.
The other thing that can happen is the car never goes into closed loop if the resistance doesn't go to a low enough value. So your mileage is bad and you will see smoking exhaust from the rich mixture.
Make sure to test at three temperatures. Cold, warm, and fully up to temp.
With the key off, measure resistance from the ground wire ring terminals (e.g. the crimp on ring terminal) to the battery - post. This should be ~0 ohms if it's making good contact to the manifold, and if the woven ground cable from the valve cover to the bulkhead is good.
You can also unplug the temp. sensor and measure resistance from each sensor pin to battery - post. Both should be the same, and about 2.0K ohms at 70deg.
Don't use a propane torch on the solder joint -- it will likely not work and can easily damage the wires/connection and anything else nearby. If the above measurements are OK, but the measurement at the EZK/ECU connector (with sensor plugged back in) are bad, then re-inspect both the manifold ground wires and the valve cover ground strap.
So the brown ground off the manifold is infinity (not sure thats the right term.) I measured it at the ring and crimp and both read the same. That would mean my problem is somewhere along those brown and then black and brown wires correct?With the key off, measure resistance from the ground wire ring terminals (e.g. the crimp on ring terminal) to the battery - post. This should be ~0 ohms if it's making good contact to the manifold, and if the woven ground cable from the valve cover to the bulkhead is good.
You can also unplug the temp. sensor and measure resistance from each sensor pin to battery - post. Both should be the same, and about 2.0K ohms at 70deg.
Don't use a propane torch on the solder joint -- it will likely not work and can easily damage the wires/connection and anything else nearby. If the above measurements are OK, but the measurement at the EZK/ECU connector (with sensor plugged back in) are bad, then re-inspect both the manifold ground wires and the valve cover ground strap.