hey guys...i know this shouldnt be to hard...but heres the story..I have a 95 civic hatch cx...with with a short ram intake..and headers....well i put the headers on and the check engine light came on...which i new would hapen cause theres no cat anymore...but when it came time to smog it i needed to put the stock headers back on so i did that and the check engine light is still on and i tryed to reset it by takign out the fuse and undoign the neg. battery termanal and ive let it sit for like an hour and ive tryed everytihng....but it wont reset...either that or there really is soemthing wrong with my car...but im pretty sure its the ecu...the cars never been raced or anythig and it only has 130k on the engine...so...anyway i really need some help cause i dont think itll pass smog with the check engine light on....PLZ HELP!!!

 

well, your first bet is to find out which code the cel is

theres a thread o how to do that,. basically theres 2 connectors near your glove box by the door kinda. theres a 3 prong one, and a 2 prong one.
take a paperclip and jam it in the 2 prong connector and turn your car to the on posistion but dont start

the cel will blink. a long pause = 10
a short one = 1
add them up and thats the code
then check the code or just ask here what it is

as for your cat, no cat wont throw a cel on a 95. 95 runs a single o2 on your manifold. 96 runs dual i believe.

either way, im guessing your throwing code 41

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Morning Call &raquo;</TD></TR><TR><TD CLASS="quote">well, your first bet is to find out which code the cel is

theres a thread o how to do that,. basically theres 2 connectors near your glove box by the door kinda. theres a 3 prong one, and a 2 prong one.
take a paperclip and jam it in the 2 prong connector and turn your car to the on posistion but dont start

the cel will blink. a long pause = 10
a short one = 1
add them up and thats the code
then check the code or just ask here what it is

as for your cat, no cat wont throw a cel on a 95. 95 runs a single o2 on your manifold. 96 runs dual i believe.

either way, im guessing your throwing code 41 </TD></TR></TABLE>

he's right. check your code

 

well after i find out the code then what?

 

look here or post back here...

 

Use my DIY thread at the top of this forum..
Check the code
Fix the code
Pull backup ECU fuse in the underhood glove box for 3 mins.. or disconnect the negative battery terminal for 3 mins

 

how do you fix the code after you get it?

 

 

mine doesnt look lie kthat.....there is liek a thin brick looking on top of the ecu and there is a plug of some kind pluged into it but its all taped up....and its a lot higher that the plug in the pic

 

this was just covered a few threads down.

https://honda-tech.com/zerothread/1706759

and as far as fixing the code goes. the code tells you whats wrong with the car. you then fix the problem with the car and the cel will dissapear into thin air......

 

isnt that pic from a 97 civic dx

 

go to autozone they let u use the puller for free amd delete it

 

its pretty obvious that its the o2 sensor,since it is mounted on the exhaust manifold.did you try connecting it back in when you swapped back the manifold?if you did, the o2 sensor is damaged.
the o2 sensor will set a what is called "a hard code" which mean that no matter what you do to try to erase it will always be there the only way you can clear it is to replace the o2 sensor.to pull the code manually turn off the ignition, jump the 2-pin connector(underneath glovebox next to the ecu) with a paperclip,turn on the ignition and wait for the light to start flashing then count the flashes (long flashes are for the first digit short flashes are for the second digit). o2 sensor wil give a code 1.

 

and the stock headers are slightly cracked....i dont think any air could get out but idk....but the engine light was never on before....so i dont thinkits the headers...or the intake...so idk....but as soon as i put the after market headers on, the engine light has been on

 

but idk how the o2 sensor could be damaged..can someone plz explain?