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Misfire under load


sunshine

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My car's got gremlins under the bonnet.

 

It seems to have developed an intermittent fault where it misfires under load.

It drives fine under light acceleration however when i put my foot all the way down there's loads of vibration and the car feels like its lost 100bhp. idle also seems erratic and there's a strong smell of petrol when cold.

 

The cel light starts flashing sometimes, ive done a pedal dance and found the code 303 pops up, 'cylinder 3 misfire'

 

My initial thoughts are the ignition coil could be on its way out, are these replaced individually and the same for each cylinder? how much do they cost?

 

I say it intermittent because sometimes it's absolutely fine then sometimes its like crap.

 

need to get it sorted because im doing a 600 mile round journey in a few weeks.

 

cheers chaps.

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all the packs are the same - swap 3 and another over see if the code changes.

 

If so :pmzmanalex: for a new one.

 

Someone had a simlar ish problem recently I think that was a CPS

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all the packs are the same - swap 3 and another over see if the code changes.

 

If so :pmzmanalex: for a new one.

 

Someone had a simlar ish problem recently I think that was a CPS

 

 

Thats a good idea, i'll try that first. :thumbs:

 

Hi mate, I sell coil packs in packs of 3's or singles. PM sent and good to send in the morning if needed :thumbs:

 

Cheers buddy if it is indeed the coil pack i'll be in touch.

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all the packs are the same - swap 3 and another over see if the code changes.

 

If so :pmzmanalex: for a new one.

 

Someone had a simlar ish problem recently I think that was a CPS

 

 

Nice one Chris :clap:

 

Plenty preowned and brand new coil packs in stock and good to go same/next day :thumbs:

 

Also loads of CPS in stock if required :thumbs:

 

Alex :)

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Alright guys swapped the coil pack from cylinder 3 to cylinder 5 today and the code changed from p0303 to p305 so its definitely the coil pack causing the misfire.

 

Check the cam covers haven't leaked oil on to the plugs, which then in turn knackers the coil pack.

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