My son has a 91 civic that has had a dohc zc engine swapped in.
The ecu is blinking code 4.
I believe it is a 3rd gen dohc zc engine.
The car is still obd0.
The cam sensor (cyl/tdc) resistance measured 890 ohms ( suppose to be between 600 and 1,000), so that seems okay. Checked continuity between each wire and ground. one had 0 ohms and the other measured 890 ohms (same as reading across the two wires). So it would appear the cam sensor is bad, correct?
Money is tight enough, don't want to just through cash at it.
Should each of the two wires have zero resistance to ground?
Symptoms
starts and runs, but idles rough. Will rev (not smoothly/ struggles) to 3k or so but starts to backfire after 3k.
The car has not run correctly since the engine was swapped in.
We tried three different ecu in it.
Lee
The ecu is blinking code 4.
I believe it is a 3rd gen dohc zc engine.
The car is still obd0.
The cam sensor (cyl/tdc) resistance measured 890 ohms ( suppose to be between 600 and 1,000), so that seems okay. Checked continuity between each wire and ground. one had 0 ohms and the other measured 890 ohms (same as reading across the two wires). So it would appear the cam sensor is bad, correct?
Money is tight enough, don't want to just through cash at it.
Should each of the two wires have zero resistance to ground?
Symptoms
starts and runs, but idles rough. Will rev (not smoothly/ struggles) to 3k or so but starts to backfire after 3k.
The car has not run correctly since the engine was swapped in.
We tried three different ecu in it.
Lee