Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 92 civic vx sputtering/slight missfire at idle normal?

tak209 · 04-02-2016, 10:15 PM

hello i recently rebuilt my 92 civic vx with the 5 wire o2 sensor. the car had a full rebuild with new valves and seals. new head gasket, piston rings bearings ect. only thing not new is the distributor. i replaced the cap and rotor and wires. and new plugs (ngk zfr5f-11) due to me being in central california a warmer climate and i will be commuting about 80miles for work a day. new cat, new ngk o2 sensor. timing is set to 16 degrees btdc. there is no check engine lights, and i have checked the egr system, which functions properly. fuel system and map sensor. all check out good. i have not checked the vtec solenoid. or the iacv but i dont think that would cause the issue. this is my first vx and i know they are temperamental. im wondering if this is just normal behavior like i have heard, or if i am missing something.

i also tried a spare 94 p07 ecu (4 wire) which threw the o2 sensor code. but it still ran the same.

im out of ideas. wondering if anyone has any ideas...

04-02-2016, 10:15 PM	#1 (permalink)
tak209 EcoModding Lurker Join Date: Jan 2015 Location: stockton Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts	92 civic vx sputtering/slight missfire at idle normal? hello i recently rebuilt my 92 civic vx with the 5 wire o2 sensor. the car had a full rebuild with new valves and seals. new head gasket, piston rings bearings ect. only thing not new is the distributor. i replaced the cap and rotor and wires. and new plugs (ngk zfr5f-11) due to me being in central california a warmer climate and i will be commuting about 80miles for work a day. new cat, new ngk o2 sensor. timing is set to 16 degrees btdc. there is no check engine lights, and i have checked the egr system, which functions properly. fuel system and map sensor. all check out good. i have not checked the vtec solenoid. or the iacv but i dont think that would cause the issue. this is my first vx and i know they are temperamental. im wondering if this is just normal behavior like i have heard, or if i am missing something. i also tried a spare 94 p07 ecu (4 wire) which threw the o2 sensor code. but it still ran the same. im out of ideas. wondering if anyone has any ideas...