I have a 1991 ef hatch with the d16y8 engine. I am running the motor off a obd0 automatic integra ls ecu but the vtec is engaged by an rpm activated window switch. I am running a manual cable transmission, the original one that came with the car, but the car throws a check engine code. The code is the speed sensor. If I were to run a manual ecu would that clear the code?

 

<p>Nope.<br />Is your speedometer working?&nbsp;</p><p>This code is related to the cable drive mechanism that is in the transmission. &nbsp;Usually people fail to put the clip back in and the cable pops out = speed sensor code.</p><p><img src="http://cimg9.ibsrv.net/gimg/honda-tech.com-vbulletin/576x436/80-cable_df8269261a901bd96a330ba58884b6f419e30996.jpg " title="" /><br /><br />That mechanism spins the cable core that connects to the back of your speedometer.<br />There is a sensor on the back of the speedometer that sends pulses to the ECU which is your speed signal.<br />That's why I asked if your speedometer worked. &nbsp;No speedo is a tell-tale sign for why people get the trouble code you say that you are getteing.</p>

 

Yes the speedometer is working

 

<p>I would go through the whole speedo cable drive system and make sure it's in good order.<br />The cable can break internally and seem to work, but actually skips at times and causes the ECU to throw the code.</p><p>Other than that, you have a wire going from the back of the speedometer to the ECU. &nbsp;If you have done any wiring work, this might be an issue. &nbsp;Make sure the pins on the ECU connector are all seated within the connectors properly.</p>

 

Thanks for the help, Will look into it