Hey everyone.

1991 Civic Si Hatch with a 1989 blacktop ZC. I'm throwing 17 (which I know is VSS, don't care. Speedo is unplugged), and 8, which is...?

I don't know what it is, nor how to correct it. Help

Edit: Ok, it appears to be a TDC sensor. I'm not sure where that's located.

 

Can anyone tell me where this is located on a ZC/D-series? I'm guessing it's part of the distributor or something?

 

Code 8 - Top Dead Center Sensor

It's the second sensor in the dist. It can also be located on the camshaft of DOHC engines. It determines the injection timming for each cylinder, also used to detect engine speed (rpm) to read the basic discharge duration, for different operating conditions.

If the dist. base bearing starts failing, it will heat the sensor(s) up, destroying the magnetism thus causing a code(s). It will lose 10% of it's strenght, each time it is heated up, to a 170 degrees plus.

In most cases, replacing the distributor is the only alternative. Especially if the bearing has failed.
Honda does don't stock the bearing, but other after-market compaines are said to have one.

If you have problems starting the engine, or drivability after the install check your cam aligment. The seizing bearing might have caused it to jump a tooth/notch or two. From the extra drag due to the bearing failing

 

So it's....



...?

or is it....



...?

Whole engine:

 

Its the second pic, its inside the distributor.

 

Thanks, man. It looks like I'm more or less fucked here. Honda wants 350 for a new one, and I had one on the motor I swapped this one out for. The motor my parents made me drop off at the wrecker two weeks ago.

 

Check out one of the honda tech sponsers, I think there name is the distributor king.

 

Whoa hey you from carson! Me too haha