i have been reading all over the net to see what is the cause of this code, people have said fuel pump they have said ecu injectors... but i dont want to spend money on something and it not be it!!! im also getting code 23 knock sensor. ill get to fixing that also. but does anyone know of anyone that had this code (43) and fixed it???? please let me know thanks!!!

 

i guess all this does is kinda varify things.

http://www.crxmpg.com/obd1ecucodes.html
http://www.hondacivicforum.com/m_45386/tm.htm
http://www.jdmcivic.com/forums....html


https://honda-tech.com/zerothre...51613
http://www.superhonda.com/foru....html

 

thanks for the post but i need to know what to fix!!!

 

read the bottom 2 that has some stuff

 

what motor are you running, what injectors are you running and what ecu are you running? I had the same problem, maybe i can help!!!

 

h23a1 stock internarls injectors all stock i have a fuel pressure regulator i have tried putting it at 20 psi 25 psi 30 psi and differnt numbers and always does the same thing (ends up doing it anyways the bogging) i also have the knock sensor code which i have to get fixing. ill do that later on. so for now what do i have to fix??? also when i punch it some like 3/4 thorttle. there is like a little beep whistle sound its not from the intake its an eletronic beep whistle sound idk maybe thats something that has to do with it? let me know please!

Short ram intake, mesh filter, pulleys,headers, full exhuast, magstar 8.5 MM wires ngk iridium spark plugs.


Modified by royalfelix at 7:14 PM 11/11/2007

 

BUMP!!!! PLEASE HELP!!!

 

Buy a new oem oxygen sensor... it is the problem

 

I got the same code when i was using h22 injectors on my h23 with no other changes. i put the h23 injectors back on and the code was gone.

 

i got an 02 sensor like 2 months ago i really dont think thats the problem.... i have herd people who have got new oem 02 sensors with the same code and it didnt solve the problem what else could it be?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">have a fuel pressure regulator i have tried putting it at 20 psi 25 psi 30 psi and differnt numbers and always does the same thing (ends up doing it anyways the bogging)</TD></TR></TABLE>

could this be the problem?

 

pretty sure my aftermarket fpr isnt the problem, other people have had the same issues with the stock fpr. i noticed something today when i turned on my car in the mourning i looked at the floor near the exhast and everytime i would hear the car bogg a bunch of gunk would spill out like water with black stuff... then when the check engine light came on it whent away. its not coolant i know for sure its not a headgasket because it doesnt blow out any smoke. but idk thats what it did maybe since it was cold water build up in the air? first crank in the mourning idk if it does it after warm... man i wish some one knew the fix to this!!!

 

do a compression test...

My car was FUCKED after i got this code, but the #1 fix, is to replace your o2 sensor... or check your O2 sensor wiring (maybe grounded out)....


if your car is running okay, but just has the code... I would check your o2 sensor wiring in your exhaust, and possibly in ur ecu

 

i just got in the new block like 2 months ago, and i changed the 02 sensor like a month and a half ago. why does everyone shoot for the damn 02 sensor.. the 02 sensor has its own code... o.O

 

sorry bud, but just do it... TRUST ME!

 

Put the stock FPR on and see what you get.

You do NOT NEED an aftermarket fpr, what a headache.

 

yah but it looks cool under the hood so... might as well keep it there. arg so no one knows what it is just guesses its the 02 sensor...

 

He's telling you to do that in order to rule out your aftermarket regulator, you don't have to keep it off, just swap it out and reset the ecu to see if the problem reoccurs. Troubleshooting is your friend

 

Yeah, don't be lazy. It takes 10 minutes. (don't forget to open gas cap LOL)

Its not about thinking about what it could possibly be blindly. Its about narrowing the possbilities down so you hit the nail right on the head without alot of unnecessary guessing. Its usually more cost and time effective (faster)that way.

I'd listen to mgags. He seems to know his ****.

(btw, in regards to my stalling in mornings, I put in a new coil and the stalling is gone. It could have been bad connections at the coil (I cleaned the contact points and quick connector, as well as ground to secondary coil) but either way It fires up immediately every time first crank*knock on wood*even in our -7 morning we had)

 

Oxygen Sensor.
First thing to try.

i've had 43 code come on, and the car would usually run crappy at about half throttle, but usually come out of it. It was code 43 kept showing up every time my check engine light came on. I replaced the fuel filter, and my pump was new, so I didn't know what the problem was, and i just kept driving.

A month or so later, code 41 popped up. Once it was showing 41 code, it would run fine once the check engine light came on. (because with code 41 engine runs in open loop at all times if c.e.l. is on)

Long Story short,
I replaced the O2 sensor and have had NEITHER code pop up since.

 

well damn it i bought an 02 sensor off ebay like month and a half ago and the problem stayed...

 

unplug your O2, reset the codes and drive it for a bit. you will for sure get code 41 immediately for the o2, and if you still get 43, you KNOW it isn't the O2. (just to save you the $$ of buying a new 02 right away) Honda ECU's are very, very picky about the O2 sensor voltage, and can throw code 43, before it realizes it is the O2.

The Heater in a heated 02 sensor reaches as high as 1300 degrees, so if you touched the element AT ALL before it was installed, it can severely shorten the life of the O2, due to the hot spot caused by body oil (just like touching a halogen headlight bulb will shorten the life) I have heard a few times of hondas throwing codes 41 and 43 less than 6 months after a new one was installed.

also, has your fuel mpg suffered?

 

im doing like 220 to 240 mpg a tank... from what i herd my motor should get 300+? h23a1 automatic. by the way can the old 02 sensor be cleaned or something? like dipped in gas i just dont wanna buy the new oem 02 sensor if its not 100% sure that, thats the problem.

 

yeah.. if i fill my h23 when the light comes on, i have about 350 miles. bad 02 sensors kill your mileage. Have you tried unplugging the o2 sensor and checking the codes? it is super easy to do. the plug is about 6" above where the o2 plugs in. takes 5 minutes.

as far as i know, there is no way to clean the 02, but i am not sure.

 

what do u mean unplug the 02 sensor??? the only code i get is 43 and 17 which is my speed sensor. so.. how do i check for it? better explain please. by the way i have short ram intake mesh filter full exhuast system. pulleys ngk spark plugs iridium magstar 8.5MM wires megan header, thats about it.