Okay people, heres the problem. I have a 93 civic dx, i bought the car as a shell and put in a nice d16z6 that was known to be running before i installed it in my car. So i install my motor and take it for a spin, the thing will not rev past around 2000 rpm while i drive, it sucks cuz i can hardly make it up hills and i can only go 80 km/h, if i press the peddle down to far suddenly the car will just bog out. Now, i have tried changing the fuel pump, FPR, dizzy, sparkplugs, sparkplug wires. I am also getting a code 43 which is a "Fuel Supply System defective or malfunctioning fuel supply system" How can i fix taht code? Please someone help me, i wanna drive this thing at somewhat of a normal speed PLEEEEEASE!!!

 

My friend had the same problem he couldent go past 2k turned out to be a bad clutch master cylinder try that

 

how did you do your wiring? did you add the vtec and all that? maybe some vacuum lines start with the simple things. as for your code, maybe a dirty gasstank? or u need a new fuel filter?

 

clutch master cylinder???? how could that be the culprit????

 

checked all vacuum lines, they are all good, made sure i didnt cross the TPS and map sensor connectors, my vtec is all wired up rite.... fuel filter is brand new, i am clueless as to what it could be now, i have tried so many things

 

missing ground? there are some sensor plugs on the back of the intake mani and three of them i think and u can missconnect them and it will mess things up, O2 sensor also. checcked for clogged vacuum lines? those are hard to find or cracked ones.

 

anyone else?

 

Clutch master cylinder?? That doesnt make sense but ok.

Wiring. Make sure the ECU isn't bad or anything either.

 

my car bogged like at a bitch at 5000 and would redline early at 6000 in my b16 turned out to be one bad fuel injector.

 

did you remember to hook up ur thermostat ground?

that will cause serious bogging issues.

BTW ur code 43 is most likely your o2 sensor which can throw your car into limp mode.

 

i will go ckeck that now thank u

 

check the plugs yet?

 

yupp and tried new injectors too, just waiting for the car to cool down rite now so i can try my other O2 sensor

 

u could be getting to much gas or have fouled spark plugs

 

i just changed the O2 sensor and that didnt work already tried differnt spark plugs too WTF is wrong with this thing!

 

Someone please give me the answer! I have treid everything!!!

 

pull the plugs, and look down into the cylinders. Make sure everything looks good. If you spot any water, you found your problem.

 

umm, dont thats it.... ive been driving the car around the last 2 days

 

so i guess im screwed...

 

what distributor are u using because ignition system timing is equally important as the fuel delivery system.

 

i am using a stock dizzy for a d16z6, i even tried the whole dizzy off my friends civic with d16z6 and same problem continued

 

hey man im having the same prob with my b18c5, i pulled the plugs and on one of the plugs there was what appeared to have water on it. what does this mean and how can i fix it??

 

I'm guessing head gasket. Also make a new thread about it - The modding police will tell you in 5 nano secs :D