Only 3 Cylinders + Check Engine Light.........

[JAP63]

Help.

Today i cleaned my engine bay.
The only things i removed were the

-inlet pipe with aircan and filter
-2 earth terminals rear firewall passenger side.
-Wiper motor.

After sparaying some Armorall and WD40 i conencted everything back up.
I started the car and its only running on 3 cylinders and the check engine light comes on and stays on.The car idles fine at around 900-1000 rpm and even revs up ok,just runs a cylinder short,the whole time

I checked the airflow meter plug,hoses clamps all the terminals and switches.
all looks ok.Even disconnected and reconnected plugs..at both ends

I dont think its a vacuum leak,because the car idles fine and the check engine light comes on.
Electrical prob?
Could i have damaged the airflow meter?

How do i check computer codes?and or airflow meter?

 

[SIVART]

have you sprayed a spark plug lead wih armourall

if you have it could be throwing spark elsewhere like if you got water on it,
meens you have a bad lead and its best to replace

also check your coil pack

 

[bazeng]

sounds like something to do with your leads also...
check to make sure they are all tight

 

[JAP63]

But the "Check Engine" light

Would a bad lead cause a light?

 

[CLuTZ]

get your ecu checked for fault codes........

 

[JAP63]

It stopped
Dunno wat it was.moisture related perhaps.