hi there i have a 94 civic with a gsr motor,i had this problem for the longest time that my car idles low and the car sputters and jerk at some certain rpm range while decelerating foot off the gas on any gear,i've done a lot of things trying to fix the problem spark plugs,wires,cap,rotor,o2 sensor,cat converter,fuel filter, but didn't help,then did a fuel injection flush for preventative maintenance and it fixes everything up for 5 days then problem came back,did another injection flush maybe it's just really gummed up then again it only fixes it up for few days,after 3months of this problem going on i changed the spark plugs again and i find out that one of my cylinder is running rich but don't know which one coz i forgot to mark them,but my mechanic says that i have one bad injector so i bought all 4 new ones and got it installed,it worked for 5 days then problem comes back but not as bad,it's been 3 weeks now since i change the injectors,okay this is what going now the car runs fine for 6-7 days then it's gonna act up for a day or two sometimes just few times in one day then the car runs perfect again for 6-7 days this is what i observe,now this is my question and i hope you got some answers,could it be my tps just need some adjusting? or map sensor? or maybe the injectors that i bought are no good? is there anything more that controls the injectors besideds ecu?
by the way iacv is good too.please reply thanks.

 

First of all, that was painful to read. I've never seen a sentence that long in my life.



Second, it could be a lot of things. Seems to me you've got a ghetto/crappy swap and it's never run right. Could be anything from vac leak, wiring problems, ECU, poor installation, etc.

 

i have to correct you it's not a sentence it's more like a paragraph,the reason why my post is long coz i want you to know the things i'd done to it to narrow it down.
secondly it's not a ghetto/crappy swap coz i have the motor in for over a year b4 it start acting up and i know the guy that did the swap for me and he have a very very reputable shop,and eventhough it's doing it it still runs fine not that bad i'm pretty sure i can drive my car from toronto to vancouver no problem.i checked everything the ecu,iacv, i mean everything.i just wanted to know if the tps and map sensor controls the fuel delivery or the injectors somehow.