check engine light

[civ69]

Well I just installed a dc sports 4-2-1 header on my 92 civic, and after I drive for awhile the check engine light comes on. Everything was fine before I put the header on. I noticed that dc relocates the o2 sensor down by the collector, and have seen other posts about the extension cable causing too much resistance? anyway I reset the ecu by disconnecting the neg batt. cable, but light still comes on. Any ideas ..

[ShStar333]

HEY, I HAD THE SAME THING HAPPENED TO ME. HAD A 92 CIVIC EX AND EVERYTHING WAS FINE UNTIL I INSTALLED THE DC 4-2-1 ONE PIECE HEADER AND THE ENGINE LIGHT WENT ON. CHECK THE ECU CODE AND IT GAVE ME A CODE 43. I THOUGHT SOMETHING WAS WRONG WITH THE FUEL SUPPLY CIRCUIT BUT NOTHING. THE PROBLEM WAS THE OXYGEN SENSOR. CHANGED THAT AND RESET THE ECU, NOW EVERYTHING IS FINE.

[civ69]

You know an easy way to check the ecu code, without taking it to a shop. The 92's dont have the led like on the older 4th gen civ's.

[b16a3sol]

trip the wire that is down by the floormat on the passenger side. that is done by shorting it out with a paperclip or screwdriver. the check engine light will flash telling you the code. get a book that tells you what the codes mean and how to solve the problem.

[civ69]

That wont fuck the ecu up will it??

[b16a3sol]

thats what the wire was put there to do. buy a book.