Codes P115D - MINI Cooper Forum
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post #1 of 4 (permalink) Old Jun 14th, 2019, 10:46 PM Thread Starter
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Codes P115D

Hi , I put a AEM cold air intake on it didn't get it tuned but after driving it around 60 miles check engine came on .
Scaned it and code P115D came up the car has 121,000 miles ,Cleared the code and try to start it and it didn't start . So the next day ordered a new MAF sensor. Try to start the car and it fired right up but after a while the engine light came back on . Install the new MAF sensor cleared the code but car won't start is their a delay once you clear the codes.


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post #2 of 4 (permalink) Old Jun 15th, 2019, 08:21 AM
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Originally Posted by henryc View Post
Hi , I put a AEM cold air intake on it didn't get it tuned but after driving it around 60 miles check engine came on .
Scaned it and code P115D came up the car has 121,000 miles ,Cleared the code and try to start it and it didn't start . So the next day ordered a new MAF sensor. Try to start the car and it fired right up but after a while the engine light came back on . Install the new MAF sensor cleared the code but car won't start is their a delay once you clear the codes.
nope should start right away when clear codes clear them then switch ignition of for 12 seconds is a common practice.
check the multi plug to sensor and you have correct sensor some cheap ebay ones are rubbish, also after fitting one take can for a drive if can and reset light u to 4 times after if keeps coming back its got a problem, how do you know its the sensor at fault, if its a turbo petrol the inlet ports could be carbon up worth checking back inlet manifold off if is seafoam spray works and a rag on a screw driver


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post #3 of 4 (permalink) Old Jun 15th, 2019, 10:12 AM Thread Starter
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Thanks Mike for your help.
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post #4 of 4 (permalink) Old Jun 15th, 2019, 10:30 AM
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Thanks Mike for your help.
i do know of guy who works on these systems ie can delete files from self check within the ecu that throw up codes like that, but he is in uk and you would need to work a way to post it etc and costs would prob make not worth doing,
trouble with the prince engine is its designed to work for emissions more than out right power and the pcv breather system is all part of this and effects everything,, you want to be care full it dont nail the motor from lack of oil vapour and how it lubricates the top end also the oil burning is added to how car injects fuel and controls knock ie helps to stabilise the ignition on power stroke,, also the effect of running to lean or rich add that to a stretched chain and all hell will break out,

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