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 '02 R50 stalling when slowing down

 Created by: 02152
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 Posted: Apr 11, 2020 03:49AM
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CA
VictorThiago is a spammer.

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"Hang on a minute lads....I've got a great idea."

 Posted: Apr 11, 2020 02:16AM
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I have a '02 R50 base Mini 5 speed (144,000 miles).  It has rough idle and stalls when you slow down or come to a stop.  It is a near total rebuild project (have not touched the internals of the engine).  I have replaced the plugs, wires, throttle body, bypass valve, catalytic converter, and both O2 sensors.  I did part out a cooper S for the interior seats and gas, brake and clutch pedal.  I'm confident that I don't have a vacuum leak. Any thoughts or suggestions before I cave and take it to a dealership?  Thanks!

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 Posted: Jan 29, 2020 01:45PM
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yep full tank, even used the good gas! had added some fuel stabilizer as well.  Coil was my next thought as well as a fuel filter.  Thanks for the ideas!

 Posted: Jan 29, 2020 12:27PM
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Quote:
Originally Posted by 02152
I have a '02 R50 base Mini 5 speed (144,000 miles).  It has rough idle and stalls when you slow down or come to a stop.  It is a near total rebuild project (have not touched the internals of the engine).  I have replaced the plugs, wires, throttle body, bypass valve, catalytic converter, and both O2 sensors.  I did part out a cooper S for the interior seats and gas, brake and clutch pedal.  I'm confident that I don't have a vacuum leak. Any thoughts or suggestions before I cave and take it to a dealership?  Thanks!
I would start by checking all the basics:

Fuel - check to see that you have proper fuel pressure

Air - check the pcv valve

Ignition - check to see that there are no visible cracks on the coil in the areas where the plug wires attach

I presume you have a full tank of good gas...

 Posted: Jan 29, 2020 09:43AM
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I have a '02 R50 base Mini 5 speed (144,000 miles).  It has rough idle and stalls when you slow down or come to a stop.  It is a near total rebuild project (have not touched the internals of the engine).  I have replaced the plugs, wires, throttle body, bypass valve, catalytic converter, and both O2 sensors.  I did part out a cooper S for the interior seats and gas, brake and clutch pedal.  I'm confident that I don't have a vacuum leak. Any thoughts or suggestions before I cave and take it to a dealership?  Thanks!