help meh!!!!!
 

ok i drive a 93 civic coupe ex ,the engine was about to go so i swaped it for a jdm d15b


i used the ecu,headers,intake mani,tb from the ex engine .its been running fine for almost 2 months now and this is whats its doing



sometimes while idling the speedo will jump up and down by itself .


while driving somtimes if feels like the car downshifts

it also feels as if the car is shifting to early

also if you use the cruise controll
somtimes it will disingage and turn back on by itself


im thinking ecu ,i just need some help to avoid bringing it to the dealer friday.

the up and down on your tach either means that the idle is set to high or you have a vacuum leak somewhere. when does it jump up and down when engine is hot or cold ? hot outside or cold outside

the jumping is on the speedo it mainly happens when hot out side and the engine is hot

is it a 5speed or auto? downshift could be a number of things on an auto... but couldnt be happening on a 5speed

he has an auto.

OT: gotta love this smilie :bow:

you can thank me for getting chris to incorporate that smiley.

you :bow: me

:bow: :bow: :bow: :bow: :bow: :bow: :bow: to Maxvla :D

lol... now that we're completely off topic im going to delete our posts soon... lol.