Hi,

I just put in a rebuilt engine in my 96 impreza. I have swapped the coil pack to coil on plugs. I use apexi power FC.

The car fires only on cylinder 4.

I have swapped with other coil packs and stil no luck. It only sparks on cylinder nr 4.

I have tried with the Oem ecu without luck.

Plugs are also new.

Any ideas?

 

Have you used a different crank sensor or crank wheel?

 

No, I haven't tried a different crank sensor. Would that make a difference?

 

So after the build your orignal wheel and sensor was put back on? If yes then shouldnt be a problem. If no then there are diffetent trigger wheels and sensors depending in car year.

 

But that wouldn't make a difference since its firing on one cylinder right?!

 

It will if it had the wrong trigger wheel/sensor combo or both and the ecu is getting the wrong signal

 

According to my mechanic he found out that all cambelt sprockets are the same on all EJ20* DOCH.

 

Have you re used all your original parts as turbotits has said?

Do a search on here, you wouldn't be the first to have similar issues from what he has told you, there are varying parts between years, so If you have a mixture of them, then more than likely that is your problem, and as said the ecu could still fire on certain cylinders if it gets a signal to fire, albeit may be the wrong one

 

I can not say if all the OEM parts was reused, as I'm not the one who is putting the car back together.

But I can not find a single thread on the internet or SCN regarding a impreza that is only firing on one cylinder.

 

Not true - the cam pulleys and pick-up triggers changed on the Newage models.
Who built the engine as have seen several 'rebuilds' with the camshafts fitted in the wrong position ( L/H swapped with R/H ) and they wont run.

Mick

 

I'm in norway, so its not a Uk builder I'm afraid.

 

stil the same problem... nobody else has any ideas?

 

I would check the crankshaft sprocket mate ,I had the same problem when I rebuilt my newage engine turned out tobe a tooth missing on the crankshaft sprocket had to look twice before I could see it mate ,hope this helps

 

mechanic is checking again tonite.

 

Sorted...

 

How was it sorted???

 

Would be helpful to others with problems if its sorted and you know how lol

 

Taken from my other thread:

It's sorted now. The mechanic had put the wrong wires at the wrong coil...
The car has been soldered and wired too many times.. So the color of the electric wires arE fu....

So not really helpful for others...