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 Posted: Nov 18, 2022 06:56AM
 Edited:  Nov 18, 2022 06:57AM
Total posts: 2229
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Member since:Dec 29, 2004
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burnt valve? just a wild guess...

 Posted: Nov 17, 2022 03:15PM
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US
Haven't messed with the MINI much. I did wire up the VVT sensor that had the busted clip. Car starts and sounds good, other than it pops through the intake. I put a code reader on it today and it gives me code P0300, random cylinder misfire. I'll look into that tomorrow.

 Posted: Nov 6, 2022 07:00PM
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US
ve9aa, I much prefer working on older stuff, but this hasn't been bad. Had hoped to work on it this week, but now it looks like I will be in Des Moines tomorrow, Wright City MO. Tuesday, Chicago Wednesday, Peoria on Thursday, and probably back to Wright City on Friday. Didn't plan on all that, but whatever. Hoping to wire up the sensor over the weekend.

 Posted: Nov 6, 2022 12:55PM
 Edited:  Nov 6, 2022 12:58PM
Total posts: 8551
Last post: Nov 6, 2022
Member since:Sep 30, 2002
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CA
We get misfire codes on our 2009 MINI and 2012 MINIs (non-S) all-the-time. 

One (2009) got so bad it had a hard time going up a hill on the highway.  I bought a coil (the car has 4, one sticks in each spark plug hole) and replaced it and problem solved.

The other (2012) has 1 bad oil seal on the plug (valve cover o-ring_) and it gets oil sitting down in there on one spark plug.

Both cars idle perfectly however.  I just haven't got around to replacing the valve cover gasket and o-rings.

We also had another code prevalent on both cars and it was related to some solenoid in/on/near the top/back of the head..sorry
it's been a few years, but I replaced it and it made zero difference.

Sometimes these OBD-II codes are just not correct !

(I much prefer working on my 1987 vintage machine)

Not much help......

  ~ 30 minutes in a Mini is more therapeutic than 3 sessions @ the shrink. ~

  Mike  Cool  NB, Canada   

 Posted: Nov 5, 2022 07:34PM
Total posts: 563
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US
So, here's what I found today. I bought a compression gauge that fits the spark plug hole. Starting with #1 130, #2 135, #3 90, #4 145. #3 is concerning, but I'm not to concerned about it at this point. What I am concerned about is I pulled the VVT sensors again, and they are two different sensors. The intake sensor says "made in China" on it, the exhaust sensor doesn't say anything on it. The real problem is that the exhaust sensor plug in is different than the plug. The plug was broken and I had to put a zip tie on it to hold it onto the sensor. What I didn't see the first time is that the plug won't go in far enough to let the wires connect. So the front sensor was never making contact, even though it looked like it was. So I'm going to get at least one sensor, and I need to replace the sensor plug. Probably going to a Pick n Pull that has a wrecked MINI and cut the plug off, and maybe take both sensors if I can. So whoever worked in this before I got it replaced at least one sensor, and broke the connector because it didn't fit. Probably won't get to do anymore on it until I get a sensor, and repair the plug.

 Posted: Nov 4, 2022 05:35PM
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US
Kenatminimania, My buddy read the codes when I was out of town. The only one I remember him saying is a cylinder 3 miss fire. I need to get a compression gage that will fit the MINI sparkplug holes, mine won't fit. I'll check the compression. If that's ok, I'll put it back together and check the codes again.

 Posted: Nov 4, 2022 03:36AM
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Are there any fault codes recorded in the computer via the OBD port?

 Posted: Nov 3, 2022 03:59PM
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US
Well I cleaned the VVT sensors today, didn't really help. It will idle now, but still doesn't run right until 3000 RPM. I'm going to pull the sparkplugs tomorrow and do a compression check. It runs good, and sounds good above 3000 RPM. I found VVT sensors on eBay pretty cheap. I wonder if they're any good? They're like $60.00 apiece at the parts store, and probably just the same as the eBay ones.

 Posted: Nov 1, 2022 06:44PM
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US
My mechanic friend and I help each other out. He's younger and likes the newer stuff, I do the older stuff, as well as any fabrication we need. He has a Lexus with a 1000HP J2 motor in it. It's a street car. Single turbo. It's crazy fast. I'll look at the MINI tomorrow. I was in Sioux Fall South Dakota for two days.

 Posted: Oct 31, 2022 05:56PM
Total posts: 282
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Member since:Oct 2, 2020
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Engines are so finicky. So many components that contribute to one issue. Each alone may be cheap, but if not repaired or replaced, they can bring down the rest of the engine in a hard way. Hopefully none of the small problems have dug in too deep to create larger ones. Sounds like you're on the right path. And if your mechanic friend works for beer, that makes it better on your wallet. 

.
Simple recipe for Excitement:  Take 1 Classic Mini. Throw in 1590cc's of engine. Add 5 gears. A dash of 94 octane. A sprinkle of style inside and out. Toss in 1 MadMan and finally heat tires and pavement to taste. Recipe produces 1 Mini VTEC conversion and full satisfaction. Motor on!
 Posted: Oct 31, 2022 05:14PM
 Edited:  Nov 1, 2022 06:39PM
Total posts: 563
Last post: Nov 24, 2022
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US
I read about the VVT solenoid, and watched a youtube video of a guy replacing his. Pretty simple, but pricey. The Dorman one was about $70.00. I'm hoping I can keep the cost to get it running right to less than $500.00.

 Posted: Oct 31, 2022 04:43PM
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That'll do it. Good first start. 
The VVT (variable valve timing). If the solenoid is on its way out, that will affect other comments like your timing chain/gear. And with the high mileage, who knows how long it's been doing that and wearing on the system. 
Fuel filter and pump might be one to check as well.
Domino effect.

.
Simple recipe for Excitement:  Take 1 Classic Mini. Throw in 1590cc's of engine. Add 5 gears. A dash of 94 octane. A sprinkle of style inside and out. Toss in 1 MadMan and finally heat tires and pavement to taste. Recipe produces 1 Mini VTEC conversion and full satisfaction. Motor on!
 Posted: Oct 31, 2022 04:13PM
Total posts: 563
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US
Well the coils and the sparkplugs were in oil. cleaned that up and did new seals (well my buddy did it, I'm out of town) He said it's running better, but not perfect yet. At least it stays idling and doesn't die now. He said it might needs a VVTI sensor, whatever that is.

 Posted: Oct 31, 2022 04:01AM
Total posts: 9232
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CA
"I guess I could VTECH swap it........ "

Now, THERE's a plan!

.

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

 Posted: Oct 30, 2022 05:54PM
Total posts: 282
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They are fun. Free is good too. I had a '02 Cooper'S'. Good times. Love the supercharged version 1st-Gen's though. Not a turbo fan. The labour and/or parts on these will get annoyingly costly. And with yours being so high mileage, it's good to have a plan B.
The Vtec swap is a good plan B. I have that swap in the works in my '89 Mini.
Or you can do what this guy did: https://www.motortrend.com/features/2003-mini-cooper-s-small-block-chevy-swap/
Make sure the speakers are turned right up when playing the video. There are a wack of others out there as well. 

.
Simple recipe for Excitement:  Take 1 Classic Mini. Throw in 1590cc's of engine. Add 5 gears. A dash of 94 octane. A sprinkle of style inside and out. Toss in 1 MadMan and finally heat tires and pavement to taste. Recipe produces 1 Mini VTEC conversion and full satisfaction. Motor on!
 Posted: Oct 30, 2022 04:04PM
Total posts: 563
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US
Markiss, I'm not having bad luck, in fact I think it's pretty good luck. The car was free. I traded a free truck for it. I used the motor and tranny from the truck in another car, so even If I don't fix it, it's still a profitable deal. The car is so clean, I think I could sell it even with the problem still there. I do think it's something simple, and not anything big though. I have a code reader, so I'll look into it more at the end of the week. I would like to get it running right and enjoy it a little though. I guess I could VTECH swap it........

 Posted: Oct 30, 2022 02:16PM
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Being that it's a BMW product, it's not going to be cheap to mess with. Hopefully something easy as an O2 sensor, vacuum leak, faulty idle control valve, etc. If you know someone that has a code reader, plug it in and see what comes up to do a self diagnosis. Best of luck with it. Hope your luck improves

.
Simple recipe for Excitement:  Take 1 Classic Mini. Throw in 1590cc's of engine. Add 5 gears. A dash of 94 octane. A sprinkle of style inside and out. Toss in 1 MadMan and finally heat tires and pavement to taste. Recipe produces 1 Mini VTEC conversion and full satisfaction. Motor on!
 Posted: Oct 30, 2022 01:38PM
Total posts: 563
Last post: Nov 24, 2022
Member since:May 29, 2001
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US
Ok, great. I haven't messed with it yet, other than starting it. It starts right up, but doesn't idle. Once you rev it up it sounds good. Oh, and it's a 6 speed, that makes me happy. Thanks for the replies. Going out of town for a few days, so I won't mess with it until the end of the week.

 Posted: Oct 30, 2022 01:08PM
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If you don't find your answer here, try these forums:

https://www.northamericanmotoring.com/forums/

https://www.mini2.com/forums/

.
Simple recipe for Excitement:  Take 1 Classic Mini. Throw in 1590cc's of engine. Add 5 gears. A dash of 94 octane. A sprinkle of style inside and out. Toss in 1 MadMan and finally heat tires and pavement to taste. Recipe produces 1 Mini VTEC conversion and full satisfaction. Motor on!
 Posted: Oct 30, 2022 04:50AM
Total posts: 9232
Last post: Dec 1, 2022
Member since:Aug 14, 2002
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CA
A classic guy too, but here's my stab at the problem:
- Faulty throttle position sensor (if it has one)
- vacuum line air leaks.

.

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

Found 21 Messages

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