A code P0302 may mean that one or more of the following has happened:

Faulty spark plug or wire Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Read more at: OBD-II Trouble Code: P0302 Cylinder 2 Two Misfire Detected
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I would take a look at the cables of your fuel injectors, to see if the cable of injector number 2 is split, or damaged in any way. If all seems good, I would change injector number two with injector number three, for instance, to see if the error code would change to P0303.

 

Thanks...I did do a quick check on the cables before putting the IC back on. I will swap the injectors this weekend and see what happens.

 

Put a new injector into No2 and no change. Still running very rough. Not really drivable.
After reading loads of other threads dealing with the same fault code, looks like I need to do a compression test??
If I buy a compression tester, what size thread do I need to fit into the spark plug holes?
Thanks

 

possibly melted valve mine did it a few months ago id deffo compression test it

 

How To Do A Compression Test on a MINI Cooper

Good luck, mate.

 

Thanks guys for the info and links. I'll order a tester from Amazon today.

 

Definitely do a compression test. I had this on 3 of my engines & both times it resulted in an engine rebuild due to complete compression loss ☹. Fingers crossed yours is less serious


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Have you changed your coil pack to an after market one? I had this code when I stuck a euro car parts one on. Changed it back to my oringal one after cleaning the terminals up code never came back.

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Compression test done and results probably speak for themselves:
Cyl 1: 162 psi
Cyl 2: 0 psi
Cyl 3: 172psi
Cyl 4: 172psi.

Spoke to the garage that usually does my aircon, and explained what's happened so far.
He immediately asked if my Mini had the supercharger and said that it was probably a burnt valve.
That's out of my league, so he's coming next Mon to tow it to the garage.
At least I've taken off most of the parts, so he can access the head without removing everything that is normally in the way.

 

yup currently fixing my head from 2 burnt valves

 

What do your Pistons look like?


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Perfect no damage at all surprised as I drove about 9 miles on 2 cylinders thought it was going to be dead with holes in both

 

Do we get pictures of the destruction??

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But I see no ruined valves come on I have a half page thread on my ruined engine haha (I didn't do it)

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There's mine lol going to keep them as an ornament

 

Haha nice I got most of my stuff from ruined engines

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I've got a ruined newman phase one in the garage

 

I've blown up 4 engines so ner ner ner [emoji12][emoji12][emoji23]


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Do we have a we fucked in big time thread on here if not Why not! Got one on the classic turbominis forum

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blown up a lot more then 4 engines just this is my first mini engine

 

Ahhh I'm only talking Mini engines [emoji6]

There needs to be a 'destroyed engines' thread! [emoji23]


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Haha... I did mine properly.. dropped a valve.. destroyed the JCW head properly ..

Piston was obliterated.. was tiny granules in the sump ..

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Nice! But that head is fixable. Thr machine shop I use to work In the guy use to machine the cambers again and weld up any bits re machine and then fit new guides and that and they worked fine it's expensive though

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That head was fixed.. Bought another and ported it better than the JCW one..

Thats just a few of the pics I took while doing it..

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I've took "pop bang suck fuck!!!" as my thread

 

I have a few interesting pics of my Evos overvthe years too hehe.. 49 psi boost creates interesting alloy recycling.. and pistons always trying to create oil drains in funny places ?

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