rb studdering/stalling

[codyharrelson]

i am haven't studdering/stalling problems with my rb20det in my 93 240sx and i need help. I have changed the spark plugs and the fuel filter. I think my problem my exist in the O2 sensor but i dont know what kind to get since i live in the us.

[klh6686]

i am haven't studdering/stalling problems with my rb20det in my 93 240sx and i need help. I have changed the spark plugs and the fuel filter. I think my problem my exist in the O2 sensor but i dont know what kind to get since i live in the us.

at the top of the forum there is a thread called: "READ HERE BEFORE POSTING, RB Swap & Parts Info"In it is:"RB series replacement part numbers, etc"

Through that i found:

hey all.ive found an o2 sensor that works.its from a 1984 200sx with the ca18et engine.has the right wires and has the same cable length as the rb's.seems to work well for me right now.

BTW was the swap just done or has it been running and just developed the stutter? if the swap was just done how old is the gas? try to post as much information as you can about your car and setup and what is going on so people can help you.

[vicious]

well that sounds like a lack of fuel

the injectors might be dirty

id say try a $5 bottle of fuel treatment and see if that works before buying other parts

[Silvawnabe]

check the computer for codes first, i had the same problem. It was the MAF but, i replaced that, it still studdered real bad. I figure the injectors clogged and the MAF tried to compensate eventually ending in its demise. ended up having to change the fuel filter, and all the injectors, there was crap stuck in them.

[codyharrelson]

it has been about 6 months since the swap and it just started doing it abou a month ago

[codyharrelson]

o ok i have already ran lucas fuel system cleaner through it and change the fuel filter too

[captainclutchkick]

check your plug gap!

[driftjunke]

You still running a stock fuel pump? Also could be plug gap. Stock turbo?

E

[codyharrelson]

i am running stock skyline fuel pump and stock turbo. The gap is the same as a 300zx tt