Hello to all. This is a long story but I'll try to make a short one.
Here's little specs. My mini is 2014 with automatic transmission. I bought the car 3 years ago. It had 30000 mile on the clock. First thing was getting tuned up with with Celtic Tuning stage 2 programming. This year spring I had quick silver exhaust done (exhaust is from the middle section, no catback). Mini has now 53000 miles on the clock. Otherwise car is totally factory.
Problem started this year about June. And the problem is that everytime I start the mini idle goes suddenly from normal to 500rpm and jumps quickly back to normal. This happens only during startup and it does this sometimes 1-2 times and idle becomes normal after this. It doesn't matter if engine is cold or warm. If I stop and take 5 min brake and come back and startup idle is "crazy" and then goes to normal. If I stop at lights idle is normal. Car performances totally normal, there is no other issues whatsoever. I can drive 200 miles and after turning engine off and then start => idle goes down and quickly jumps back and then settles to normal.
I was taking car to normal service end of July. I mentioned to serviceguy that can you check if there is some simple solution to my idle problem. Guys at service take a look and they found fault codes that cylinder 2 and 3 are missfiring. I asked could they change coils and plugs, but they insisted that they have to open crankcase and check if there is problem with Valvetronic system (what the f.. this has to do with bad idle??). They also said that DME(?) must be updated but I said that it can not be done because it will erase Celtics programming.
Well I took the car off and drove to my friend who programmed car. He told me that change those coils and plugs and come back and we'll check if there is any codes left. I ordered new coils and plugs and changed them this month. I drove back to my friend and there is no more fault codes.. so it fixed that issue but that idle problem is still there. I think those old coils and plugs were original ones from the factory.
Do you happen to know what should I check next?
Here's little specs. My mini is 2014 with automatic transmission. I bought the car 3 years ago. It had 30000 mile on the clock. First thing was getting tuned up with with Celtic Tuning stage 2 programming. This year spring I had quick silver exhaust done (exhaust is from the middle section, no catback). Mini has now 53000 miles on the clock. Otherwise car is totally factory.
Problem started this year about June. And the problem is that everytime I start the mini idle goes suddenly from normal to 500rpm and jumps quickly back to normal. This happens only during startup and it does this sometimes 1-2 times and idle becomes normal after this. It doesn't matter if engine is cold or warm. If I stop and take 5 min brake and come back and startup idle is "crazy" and then goes to normal. If I stop at lights idle is normal. Car performances totally normal, there is no other issues whatsoever. I can drive 200 miles and after turning engine off and then start => idle goes down and quickly jumps back and then settles to normal.
I was taking car to normal service end of July. I mentioned to serviceguy that can you check if there is some simple solution to my idle problem. Guys at service take a look and they found fault codes that cylinder 2 and 3 are missfiring. I asked could they change coils and plugs, but they insisted that they have to open crankcase and check if there is problem with Valvetronic system (what the f.. this has to do with bad idle??). They also said that DME(?) must be updated but I said that it can not be done because it will erase Celtics programming.
Well I took the car off and drove to my friend who programmed car. He told me that change those coils and plugs and come back and we'll check if there is any codes left. I ordered new coils and plugs and changed them this month. I drove back to my friend and there is no more fault codes.. so it fixed that issue but that idle problem is still there. I think those old coils and plugs were original ones from the factory.
Do you happen to know what should I check next?
