i got an ef civic with an ls-vtec motor and an ls tranny....
my issue is if im driving at like partial throttle the car will jerk like no other..
no matter what gear im in... as long as i got it more than 1/4 throttle it runs fine... also when i come to a stop light it idles at 1500 rpm and no lower..
im running a p30 obd1 ecu chipped with a crome p30 base map..
car was running fine till the other day it just started acting up...
any info would be apprecieted...

 

pcv? or clean out the t. body, iacv and eac.

 

ground on fuel pump rusting out? clogged fuel filter? it could be alot of things really...

 

ill try the fuel filter today... i cleaned the throttle body and iac valve and it was ok for like 10 miles then it started jerking again... its really irritating sitting in traffic trying to drive and your car starts to jerk like you dont know how to drive a clutch...

 

try checking ur spark plugs to see if any of them are getting soaked with oil if so ur valve cover rubber o rings arent doing their jobs no more so replace them...that was one of my issues when swap was stuttering while driving.

 

mine did that in my ef and it was the green sensor behind the im but that was because the wires were coming apart from the previous owner doin a half ass job.
here is an excellent forum for honda swaps plenty of detailed info on ls/vtec as well as honda swaps and general tech, very comprehensive.
hondaswap.com

 

btw did you sell that turbo kit?

 

Have you tested your tps?

 

think i found the issue.. like a dipshit i didnt check the timing with a light.. i just checked the cam & crank marks... the dizzy timinr was off by 7 degrees... that and a leaking throttlebody gasket....

and i do still have the turbo kit.. but a few mods have to be made to get the down pipe on....

 

ok my problem has reappeared... it was jerking so bad this morning that i thought my motor mounts were gonna snap....im at the point now i will try anything....