hi there any ideas would help , just spent all my hard earned cash on 2.5 conversion on my sti1. gone normal route with a sbr gt12 gt30 cart , fuel pump , reg ,rails,740s,uprated oil pump etc etc etc , well prob is poor running oh also link 6 row to be mapped by pat , run car in was running a little rough running in ,smelt like over fueling , fouled plugs up once and had to clean , done compression test 165 all cylinders fine ,checked fuel rails no leaking , when throttle is held at a rpm eg 3000 revs stay but car splutters every so often and pops out of exhaust , when you rev engine seems really slow to pick up in low revs then picks up at around 2500 rpm and seams sweet as a nut , any ideas guys thanks much appreciate any help gazza

 

Has it been mapped at all for the new engine?

 

yes been base mapped by pat onlink 6 row , put 740s in and run badly , so put yellows out of 22b in and still did same did 75 bhp at atmos on sc rollers

 

done all sorts even tryed a standard ecu to see what happened and still had same characteristics of runnin , wonderin about timing now , goin to do a cylinder leakage test too , been off roads 6 week now

 

Was it mapped before or after you changed the injectors?

if it only has a base map in why not now it is run in let Pat do the proper map?

 

he has tried but prob dont lie in map its something else , tried it on rollers and missfire wasthat bad could not map it

 

you have checked your plugs?

sounds very similar to mine, when one of the plug gaps had been disturbed to nil

 

hi there yes just put brand new plugs and coil packs on car thanks mate , everyone keep ideas comin , all helps

 

has anyone ever got timing wrong and its run like this ? just a tooth out ? maybe dont know new to this

 

You got the fuel regulator pipes round the right way?

 

even if they are new plugs i would still check, as you can tap the gap closed when putting them in.

 

wiil have a look at fuel reg mate cause made parallel rails would this cause missfires and bad runnin

 

was same wi old ones in but wortha look will do mate thanks

 

any more ideas guys, not plugs checked them .............