Question about 1989 Honda Civic
1989 honda civic check engine light on computer says check evac i checked the wiring and even changed evac but engine lite still on an computer says probelm still evac yes i cleared the computer
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Posted on Jan 02, 2017
SOURCE: P1457 - Honda Civic 2005 LX
this car come with tree diferent engines the answer i'm going to give you is for a 1.7 engine sohc that codes means you have a leak on the evaporative system this system monitor the vapors from fuel tank this code some time might appear for filling the fuel tank with car runing i recomend you to clear code and make sure the fuel cap is not loose because there is a fuel pressure sensor in the tank and if the sensor don't read the right pressure then it will set the code
Posted on Jun 01, 2008
SOURCE: code PO131
Code PO131 is O2 sensor circuit low voltage , bank 1, sensor 1. That sensor I would say is the one in the exhaust manifold. I would check voltage to the sensor from the computer. If the voltage is not 5 volts, then it could be a computer problem or a wiring problem. I have seen factory wiring and connectors give a voltage problem. Check for a damaged or burnt, pinched wire. You need to know for sure that the voltage is correct to the sensor. Intermittent problems are hard to trace , but patience and knowledge helps.
Posted on Mar 11, 2009
Brake light switch is located behind or near the brake pedal assembly. its a pressure switch that is fixed near the pedal.
Posted on May 21, 2009
SOURCE: 2002 honda civic wiring diagram
Found this on another question forum and everything I need seems to match up with my 02 even though the diagram is dated to 98http://www.installdr.com/Harnesses/HA-Wiring.pdf
Posted on Jun 24, 2009
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