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Old 09-24-2013, 11:14 PM   #1
Scott330ci
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Join Date: May 2012
Location: QLD
Posts: 18
My Ride: 2005 330ci
Exclamation Code Scanner? Engine Light Troubles

Hi all,

Long time forum stalker, small time poster.

My 2005 330ci SMG had an episode this morning. Not long after startup car felt jolty and jerky went to pull over and when doing so the Check Engine Light came on. Checked under the bonnet, nothing was obviously wrong, waited a bit, started the car, light was still on and idle was rough. Had car towed home. I have just replaced the Spark Plugs (were due for a change) and topped the oil up. Car is still idling rough with engine light on.

Does anyone in Brisbane have a Code Reader? Or does anyone have any suggestions for things to check? Car is booked in for a service next monday but obviously needs some attention now.

Thanks guys,
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Old 09-25-2013, 02:11 AM   #2
Ballistic325
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Join Date: May 2009
Location: Sydney
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My Ride: slow and steady
Re: Code Scanner? Engine Light Troubles

Hey Scott

Welcome.... sorry to hear of your troubles. Yep, checking for codes us the way to go. I would imagine that you'd be looking at the following (given that there are no other symptoms):
MAF
Crank angle sensor
Camshaft intake / exhaust sensor

Did the car have any issues with starting / flat battery / electrical? Similar symptoms could also point to a failing battery or alternator..... just a thought.

Good luck!



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Last edited by Ballistic325; 09-25-2013 at 02:11 AM.
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Old 09-25-2013, 02:31 AM   #3
Scott330ci
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Join Date: May 2012
Location: QLD
Posts: 18
My Ride: 2005 330ci
I've done some reading (Bentley manual) and the suggestions have been that there may be a fault with one of the O2 sensors or similar to what you've said a faulty MAF... The engine symbol should only appear when the 'emissions have deteriorated', which leads me to think O2 sensor.

The car starts fine, no lag. All electronics are functioning as normal. I have a mate coming over tonight to help me read the codes. So hopefully that sheds some light on the issue.
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Old 09-25-2013, 02:55 AM   #4
TurnersInOz
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I've got a code reader if this doesn't work out.
Might have to dig a bit for the laptop tho....
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Old 09-25-2013, 07:09 AM   #5
Scott330ci
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So DeclanM3 came over and we narrowed down the fault to an ignition coil. Fault Code was 239 P-Code -P0302 Cylinder 2 Misfire. We swapped ignition coil over and the fault followed the coil. So I have ordered new coils from Clickable and am pretty confident the issue will be solved. Cheer to Declan for his help!!! Bloody legend!
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Old 09-25-2013, 08:33 AM   #6
Ballistic325
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Awesome! Great outcome.
__________________

I can help with
* Reading Codes / Coding your car
* R&R FCAs, Tie Rods, Sway links....
* RTABs

Need an RTAB tool? Or clutch fan and water pump tools? PM me.
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Old 09-25-2013, 06:16 PM   #7
DeclanM3
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Quote:
Originally Posted by Scott330ci View Post
So DeclanM3 came over and we narrowed down the fault to an ignition coil. Fault Code was 239 P-Code -P0302 Cylinder 2 Misfire. We swapped ignition coil over and the fault followed the coil. So I have ordered new coils from Clickable and am pretty confident the issue will be solved. Cheer to Declan for his help!!! Bloody legend!
No worries mate. Sorry it took so long! Still getting my head around diagnostics.
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