ok guys here is my prolem.... i put a new ka in my car hooked everything up right and have a missfire in cyl4. ive changed out the injector, dizzy cap, plug wire, engine harness, and ecu all from perfect running cars and still have a missfire, motor has good compression and everything and cannot figure it out for the life of me,.... would a bad knock sensor make it missfire? ohh yea i also changed out the maf also.... any comments would be gr8 if you could help me out thanks...

 

anyone got any ideas????

 

I would bet it is a blown head gasket.
probably just minor.

what oil are you using? and do you have water or antifreeze in it?

not all oils will smoke, and others will smoke like a bitch.
and water won't smoke out the tail pipe, but antifreeze will smoke screen your house.

 

have oil and str8 water in it... it does smoke like a bitch tho... someone said it could be a stuck lifter??? the motor was rebuilt with all stock parts and has been sitting since it was redone and has a new head gasket on it...

 

Lol, stuck lifter. KA's have a wafer type adjustment for opening valves, its not like a Typical hydraulic lifter in say like a GM motor. Not much to "get stuck".

It prolly is valves,rings, or like dude said Headgasket but if it just got replaced that sounds weird. But you said it smokes so any of the above it could be.

Do a compression test on it and see what happens, that may tell you right away.

GL

 

i would start simple, you need spark, and fuel, do you have em? if so do you have compression, make sure your dist. doesnt have oil in it, that can cause a miss as well.

 

has spark, has fuel, and has compression.... like i said im lost at this point lol

 

3 basics, air fuel spark.
if you have spark and fuel, then its air.

check maf, clean it, check your intake pipe for leaks. how were the o rings on the injector you put in.


if its smoking badly then,
injector, dizzy cap, plug wire, engine harness, and ecu
should NOT be your problem


also, +1 for head gasket, look around the head see if theres any oil stains around head gasket area

 

looked all around the head nore dry and still clean.... at an with with tryin to do it my self so its going to a shop iknow...

 

be prepared to pay good money......
hope you get your shit running tho..