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I had just recently finished up a valve job on the d17a2 head, put everything back together started car ran codes and had crank sensor code which I then realized that it was broken and not plugged in ( free hanging in bay)due to my timing belt breaking and hitting it. So I replaced the sensor with an aftermarket one and no start whatsoever just cranks. I figured that the sensor was bad or bad connection so I had another oem sensor off a donor civic same gen, and plugged it in and same thing just cranks. I unplugged the sensor completely and car starts up every time. I am stumped and would appreciate any help!

 
Rep Power: 367

get a new denso or NTK sensor.
Hondas hate aftermarket sensors.

 
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Sdaidoji, I have tried even with a new denso sensor it is doing the same thing

 
Rep Power: 367

hunh, did it damage wires when the belt broke?

 
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The wires and connectors seem to be fine, I’m not to sure but my logic is the wires and plug should be fine because when I install the sensor and have it plugged in it keeps cranking and will not start but as soon as I unplug it it will start, so am I just getting a false reading on the crank because of the sensor. I’m not sure

 
Rep Power: 367

same here...
all cases we see were aftermarket sensors that the ECU did not like...

 
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Im going to try and get a better look at the wires, I have an oem denso sensor on it right now that I know works fine. I’m gonna see what I can do

 
Rep Power: 224

I cannot find the thread now, but at one point someone found some of the teeth broken off the crankshaft timing gear. The teeth that the crankshaft sensor reads.

 
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I had thought that it reads where it sits in the block it doesn’t seem like it reads the little teeth

 
Rep Power: 224

The sensor reads the teeth sticking out from the crankshaft timing belt pulley. I wish I could find that thread. Maybe @sdaidoji remembers?

 
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I

thought it read through the small hole, I will check out my teeth and see if so I have another gear for it

 
Rep Power: 367

Two cases?

https://www.civicforums.com/forums/3...-solved-2.html

https://www.civicforums.com/forums/3...rt-solved.html

I keep a log in here
https://www.civicforums.com/forums/3...your-case.html

 
Rep Power: 224

I searched for a good 30 minutes and couldn't find them. I knew you kept the weird ones in a post but couldn't find it either