ok my car is running like crap basically.. i have a vortech 12:1 fmu and a inline fuel pump. recently it has been running so much fuel carbon just comes out of my exhaust pipe and stains the floor behind it.. i'm getting crap gas milage.. my CEL turned on and it's giving me a code 43. now today when driving my air fuel guage.. i know it's worthless.. was reading from extremely lean almost one little red bar showing to stoich kinda and then a little rich for a while then all the way back to lean.. it just kinda rotated when driving.. normally it would just read completely rich and barely shade the stoich when i let off the gas.. i looked in my Gen 2 integra book for trouble shooting and it suggested injectors or fuel pressure regulator might be messed up.. the shop i go 2 kinda looked at it but they're not pro's thot maybe my o2 sensor was messed up, altho i'm not throwing a code for my o2. i don't really know what to do at this point so if you guys could help me out that would be great.
thanks

 

code 43 is
<FONT COLOR="pink">Fuel Supply System defective or malfunctioning fuel supply system</FONT>

Main relay could be going bad.
Injector could have gone.
FPR could be bad.

Some how check that stuff.
Thats all I can think of.

Mine kind of did that but it didnt throw a code my V-afc just had a loose wire.

 

even if the o2 went bad, honda has a map that will keep the car running actually more rich then needs be. This is why this type of setup is not ideal for a turbo car.

 

so it's not the o2 sensor most likely?

and bvm do u still have those injectors for sale? do they come w/ the o rings?

 

I had the exact same problem... and to cure it I got some new RC Injectors.. I replaced everything in my fuel system b4 realizing that so save ur self some time and get some

 

we just rebuilt a kids motor who blew his turbo gsr hatch, and when it was start up time it wouldnt start...we were like wtf?

turns out relay was bad and fpr went bad...leading us to believe this could have been the reason for engine failure


chris

 

ahh.. sounds good.. i was planning on upgrading to some dsm 450cc injectors.. and maybe getting a new fpr.. cuz i really wanna get rid of that FMU set up.. but i do know iw as running really rich for a while and i know that can damage the o2 sensor.

 

ok well i bought a fuel pressure guage the other day to see if my fuel pressure regulator might be messed up or something.. but i'm getting some wierd readings.. i don't know if it's due to faulty install or faulty product, but when i start my car the guage reads 40 psi.. but then when it goes to idle it reads 0 psi... i thot that was strange.. anyone shine some light on this one maybe?

 

my turbo gsr hatch's af gauge does the same ****, but i am not getting any check engine lights at all, the only time i got code 43 was when i had the fpr set too low, can anybody tell me where the fuel injector realays, or whatever relay you were talking about for the FPR is located??? thanks
dave

 

where is this main relay located?? let me know
Also if your injector/s went bad wouldnt your ecu throw a code, mine doesnt, any help here???


[Modified by DLOTYPER, 9:27 AM 12/18/2002]

 

under the driverside dash near the fuse box...

a good thing to do if your running a inline fuel pump as well as the stock one is to put the pump on its own relay. Then have the switching hotwire that goes to that relay comming from the hotwire from the stock fuel pump. That way if that relay went back, neither pump would work. It also turns both pumps on at the same time and makes for better working order. Also say you flipped the car, it would turn off both pumps, not just one.


[Modified by ninesecrx, 10:37 AM 12/18/2002]

 

Code 43 is a O2 sensor soft code. Reset your ECU and it will go away. I have only seen it on my own car when I cruise for too long, dumping fuel the whole time. The O2 is seeing TOO much fuel and letting you know that it is not normal. I run a FMU and 310s and get the code regularly. I do not agree with buy or upgrading to new RCs! You must get a stable fuel pressure across all rev ranges. Or keep backing off the gas like I do.

 

i was thinking my o2 was damaged, cuz i been getting around 125-150 miles per tank