The check engine light on my 1992 Honda Civic DX recently came on. When I turned the car off and on again, it was off and only came on after a minute or so. So I thought it was an emissions issue. Anyway, I checked the ECU error codes and got the following: 9 - CYP, cylinder sensor, 17 - VSS, vehicle speed sensor, and 43 - fuel supply system.

I had the VSS replaced last year (August 2006) and I recently had the 120,000 mile maintenance in April 2006, and the bill says that fuel system was flushed, fuel filter was changed, and the spark plugs, wires, distributor rotor and cap were all replaced.

Am I getting ripped off here? Or is there yet another problem for me to worry about with this car? It runs fine, and the gas milage hasn't changed, but I notice that at speeds >75-80 mph, it feels like the rpm may be too high.

Thanks for any help you can provide.

Taken at face value, the codes thrown cast suspicion on the distributor (Code 9), Vehicle Speed Sensor (Code 17), and possibly Heated Oxygen Sensor (Code 43). When I see so many unrelated codes thrown, I get suspicious, especially when the VSS was recently replaced, that the ECM is good. I would definitely want to find out if the Check Engine Light comes on for 2 seconds and then goes out, when the ignition switch is turned to ON (Position II). Next, I would want to clean the main ECM ground, located on the thermostat housing, and perform the K-Test on the ECM.

If I was convinced the ECM was good, I would install the Ignition Control Module (ICM) and coil in a new genuine Honda distributor housing, since a Code 9 indicates that the Cylinder Position Sensor (CYP) is bad. Since they are not serviceable, the distributor housing would require replacing. Next, I would clear the ECM, recheck for codes, and check the wiring and connector to the Heated Oxygen Sensor to address the Code 43. If Code 43 persisted, after clearing the ECM again, I would replace the Heated Oxygen Sensor. For the Code 17, I would replace, hopefully under warranty, the VSS.