prolifik22

well i got a 93 sc400 and it hesitates when givin gas but the rpm's are steady

i did the 12v mod didnt help so i put it back to normal cause the pump was stayin on

i heard u can change the ecu cuz of some signs i was havin as in white smoke on a cold start.. smelly gas... lights stayin on as in like the washer level light and tank is fuel...but it didnt help(how can u check a ecu is good?)

also i hear a tapin sound comin from the fuel rail area.. and u can feel it ... it sounds like valves but i touch the valve cover and u cant feel it but if u touch the fuel rail u can

every since i took off the 12v mod the car wants to die..what might cause this?

basically when the car is parked it kinda studders and when u drive it its hesitant...

im really stumped and wantin to see if any one can help or has had this problem and solved it cuz i see alot of unsolved threads..

lmk if u have any input or advice i cld try out never hurts

btw i gonna relocate the driver harness this week..cuz its been getto rigged

prolifik22

any input?

TLDriver

iTrader: (4)

have you checked all the Vaccum lines? because it even sounds like it can be cracked hose or loose.

prolifik22

yea checked the vaccum lines and all are good... i also cant hear any leaks went as far as usein a car stethoscope... but i found bad ignition rotors..but still cant find out y im hearin tappin from the fuel rail