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Missing On A Cylinder

DriftAddict

By DriftAddict,
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DriftAddict

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Hey Guys

Been trolling the forums for a while and seems like this happens a bit..

I own a r33 97 s2 skyline, with an rb25det engine in it..

the car has been miss firing on a cylinder on and off for a while now.. some times it misses and comes back good, some times it doesn't and i need to turn the car off for like a minute and then it will restart fine.

I have replaced the plugs in it. first up it had standard NGK Plugs in it with a .8m gapping and replaced them with NGK PLatium plugs at 1.1m and this seemed to fix to until about a week down the track the fault reoccurred. Thinking that the gaping was big i bought some more standard plugs with the .8m gaping and it still plays up. The NGK plugs i pulled out were orange as well which i found to be odd. This only seems to happen once its been running for a while. But it is becoming more frequent.

Could anyone tell me if my car has OBD2 or 1 ?

I have placed a bottle of injector cleaner into the car as well which has well and truely gone through the system by now.!

Can someone please point me in the right direction. !

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https://www.sau.com.au/forums/topic/318056-missing-on-a-cylinder/
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DriftAddict Explorer

DriftAddict

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Hey guys just been playing around with it to test the coil packs.

When it plays up remove the a plug on a coil one by one.. a change in engine nose will indicate a good coil and no change will indicate a bad one..

I have no bad ones to say.. but just a bad connection.

On a coilpack i noticed if i stuck the plug in a certain positon the fault would clear, and by moving it back it would reappear.

So i think i have this thing sorted now. I was already to go out and buy some new coil packs .. looks like i dont need it now YAY !

Cheers guys

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