2010 n12 ROUGH IDLE WHEN WARM CODE P0302
#1
2010 n12 ROUGH IDLE WHEN WARM CODE P0302
2010 mini base n12 starts perfectly and runs like a million until it gets fully warmed up, then runs like a bucket of bolts. Get code p0302. If i unplug a cam sensor (either one) it idles perfectly and drives ok. I have pulled the vanos sensors and they are perfectly clean, same with the cam sensors. Granted i get an engine light with the cam sensor unplugged but at least i can drive the car. Has anyone had this issue and what can be done to fix this. Is running the car with a cam sensor unplugged going to hurt anything.
#2
You need to have the car looked at by a qualified tech.
Have you put spark plugs in the car yet? They fail around 45-60k (but MINI rates them for 100k), if you haven't replaced them start there regardless.
VANOS solenoids can have internal problems that you can't see, only way to quickly diagnose is with a scan tool.
You may also be having timing problems, which requires special tools to diagnose.
Have you put spark plugs in the car yet? They fail around 45-60k (but MINI rates them for 100k), if you haven't replaced them start there regardless.
VANOS solenoids can have internal problems that you can't see, only way to quickly diagnose is with a scan tool.
You may also be having timing problems, which requires special tools to diagnose.
#3
2010 mini base n12 starts perfectly and runs like a million until it gets fully warmed up, then runs like a bucket of bolts. Get code p0302. If i unplug a cam sensor (either one) it idles perfectly and drives ok. I have pulled the vanos sensors and they are perfectly clean, same with the cam sensors. Granted i get an engine light with the cam sensor unplugged but at least i can drive the car. Has anyone had this issue and what can be done to fix this. Is running the car with a cam sensor unplugged going to hurt anything.
#4
2010 mini base n12 starts perfectly and runs like a million until it gets fully warmed up, then runs like a bucket of bolts. Get code p0302. If i unplug a cam sensor (either one) it idles perfectly and drives ok. I have pulled the vanos sensors and they are perfectly clean, same with the cam sensors. Granted i get an engine light with the cam sensor unplugged but at least i can drive the car. Has anyone had this issue and what can be done to fix this. Is running the car with a cam sensor unplugged going to hurt anything.
Last edited by TimBaleia; 04-30-2017 at 07:20 PM.
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930 Engineering (09-10-2021)
#5
Rough Idle Fix
2010 mini base n12 starts perfectly and runs like a million until it gets fully warmed up, then runs like a bucket of bolts. Get code p0302. If i unplug a cam sensor (either one) it idles perfectly and drives ok. I have pulled the vanos sensors and they are perfectly clean, same with the cam sensors. Granted i get an engine light with the cam sensor unplugged but at least i can drive the car. Has anyone had this issue and what can be done to fix this. Is running the car with a cam sensor unplugged going to hurt anything.
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