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  #1  
Old 01-05-2014, 08:41 PM
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Default Codes Again

My Bug has thrown a code now...

301. Misfire on Cylinder 1.

I've got a set of NKG's coming, but I'm a bit confused. I've ordered 6's, but a quick search on here comes up with 7's.

I've pulled one out, and its none of the above? BKR7EIX

Then I made the mistake of googling the code!

I understand it could be plug/coilpack, but a few answers come up with

1. Front 02 sensor
2. Neutral Position Switch

Is it best just to work down the list swapping things out till its gone?
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Old 01-05-2014, 08:44 PM
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Bug's throw this quite common, as it only allows 2 or 3 misfires to log it.
I would ignore it unless it happens all the time or you start to feel the miss-fire.
Just reset the CEL.
This CEL was deleted from later ECU's most likely due to random events.
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Old 01-05-2014, 09:45 PM
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Should have added up the top, that's its also miss-firing, but not all the time.
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Old 01-05-2014, 11:27 PM
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Probably a coil pack then.
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Old 03-05-2014, 10:14 PM
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Thought I had it sorted!

New plugs, swapped the coil over on 1 to 3, to try and force a 303 if it was a faulty coil.

Still got a 301. Run some injector cleaner through it, sorted. I thought.

Did about 10 miles, run fine, boosted fine ( ish ) no codes.

Parked it up, started to work on HHO's codes.

Zig took it to the shops, again fine. Went out to pick her son up, and got a 301 again??

Dirty injector still??
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Old 05-05-2014, 02:29 PM
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Found the problem, injector was dying, and is now dead. Put a multimeter across the pins of the offending one and 0 Ohms, the others all showing about 15.5.
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