I have a 1991 Honda Civic DX and I need some help to figure out how to fix it. Since my car has the older style ECU, I had to look at the LED light and saw that it flashed 1 time, pause, flashed 15 times. I looked into my Chilton Manual and it indicated to my Oxygen Sensor and my Ignition Output Sensor. My question is where are these and does this mean that I have to replace them?

My car will drive (after sitting all night) and while driving, it will die. I have to let it cool down for about 45 minutes or so before I can drive it for another 5-10 minutes before it dies again. It almost seems like it is vapor locking, but I know it is not getting that hot, and I have a duel-point fuel injection system, so I do not think it is vapor locking. I was told that it could either be my coil or my ignition control module. Could it be these two things or is my Chilton manual right?

 

start will a full tune up plugs wires oil change fuel filter and see if that helps if not you may have to replace the o2 sensor and then disconnected the battery and see if your still getting codes

 

Code 1, Check the wiring to make sure it is not broken anywhere. You can google how to check the O2 sensor to make sure it is goodl. If everything seems to check out, I would replace the O2.

Code 15, The ignition Output sensor is inside the distributor. You can either purchase a new/used module or try one from a different distributor. Looks like this the bottom small circle.