civicracer1993

my car stumbles when i accellerate until about 4 k rpms// and at full throttle it bogs and kicks back at me.. it did this with my DX engine and now i swapped in a z6 SI motor and it still stumbles.. i cant seem to figure this out.. i changed the fuel filter and still does it. why??

311

fuel filter would be my first guess, but thats out...umm maybe bad gas or spark plugs gapped too far??

IS3Fifty

what about timing??

slowdx

if you did fuel filter my guess would be plugs...
does it kinda like pop? like a misfire? if so its the plugs.

civicracer1993

yea i changed the FF , the timings right cause honda set it for me. if it was anything like that it wouldnt have done it with the other motor too.. im trying to think outside the engine .. something to do with the fuel system or something ... i cant figure this out ..

311

did you use the same injectors as the old one?

civicracer1993

yea i used the same ones.

Who Said

maybe your fuel pump is weak, it could be ready to go out on you


[Modified by Joe Millionaire, 2:15 PM 3/20/2003]

IS3Fifty

could be misfiring injector, what about a sensor problem within the TB at WOT???

cre18

try switching to a larger fuel pump: si or gsr

311

i will be willing to bet my next paycheck its your injectors.

Edit: Same thing happened to me so I have personal experience. Changed injectors and it ran like a top.





[Modified by 311, 4:24 PM 3/20/2003]

SpooN Man

ya like everybody is saying it's a fuel issue.

Fuel pump
Fuel filter
Injectors

civicracer1993

ok well i have more injectors from a DX .. will they work? also if there is a slight cracked look to the tip of the injector will it still work cause like 2 of them looked cracked a lil but they dont fall apart ..

JDMH22HATCH

iTrader: (6)

Check all of your fuel lines, especially the ones going from the end of the fuel rail. Over time these tend to harden and crack. I had a huge problem with this on an H23vtec del sol we did. We started up the car and drove it and it stumbled and bogged on acceleration. I spent a day replacing all of the old fuel lines and the car ran killer. Two of the hoses had small cracks and was leaking fuel. And fuel evaporates very fast so sometimes small losses can't be seen. Good luck.

soopafly828

it also sounds like an injector problem to me...check to see if all your spark plugs are working cause thats wat my problem was, one plug wasnt getting any sparks because the injector was not sending any fuel, bogged like crazy after 3k rpms

dphi

Throwing any codes?