Search found 25 matches

by Jordy
Sat 07 Jun, 2014 12:56
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I've finally got the car back on the road! The garage called my this morning to say they had cleaned the throttle body as it wasn't that bad, and that they had also found a small hole in the vacuum hose (as was suggested higher up in this thread by other members). He said the hole was very missable....
by Jordy
Thu 05 Jun, 2014 09:35
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Error code P0121 was returned on mine - "Throttle Position Sensor/Switch A Circuit Range/Performance Problem". Good idea to get a fault code check to confirm. Yes, I managed to get it going again and drove to the garage, where the guy said that different code readers could give different ...
by Jordy
Wed 04 Jun, 2014 08:45
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I started the car this morning and it was bad again! So I sprayed it and waited for a while and tried again - no light! I let it idle for five minutes and all looked good, so I revved it and the light came on. Never mind, at least I know where the problem lies now. I'll change the throttle body and ...
by Jordy
Tue 03 Jun, 2014 15:41
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

My 2.2 had these symptoms and it was the throttle body sticking. I don't know if yours is a fly-by-wire but if it is, this is a distinct possibility. I had the car booked in the garage today but it wouldn't even drive off the forecourt so I rang and cancelled the garage. Taking what you said, I bou...
by Jordy
Sun 01 Jun, 2014 12:03
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I've finally given up trying to fix the problem now.
I decided to take the only option left.

The car goes in to the garage on Tuesday to finally get fixed.
by Jordy
Wed 21 May, 2014 11:02
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Both pre-cat Lambda sensors replaced and still no good.
We cut the exhaust before the cat to see if there was a problem there and we can now rule that out, so we welded it back together.
It's just becoming too much now. Really can't be bothered as every diagnostic tool points to different places.
by Jordy
Tue 20 May, 2014 18:04
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Update:

I've changed one Lambda sensor and it was still no good. I then swapped them around i case I'd inadvertently replaced on good one instead of the bad one but still no joy.
I've had another sensor delivered and I'm just about to change the other one.

Standby.....
by Jordy
Sat 17 May, 2014 15:49
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Yes of course!
Just got to wait til Monday lunchtime when the sensor gets delivered then I can replace it.
Here's hoping that'll finally fix it!
by Jordy
Fri 16 May, 2014 21:08
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Update: I eventually found someone with a diagnostic tool who works for Audi & used to work for BMW to see what the problem was. He said it would be the Lambda sensors pre-cat that did this as the after-cat sensors would think that not enough fuel was getting through and effectively choke the en...
by Jordy
Sat 10 May, 2014 19:05
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Would it be safe to disconnect the Lambda sensors then start the engine? Just a thought of what Janijoeli mentioned, about the Lambda sensors. I mean, if they aren't active until they get warm and the engine runs ok when cold, maybe then the car will still run off default setting? Then I'll know to ...
by Jordy
Fri 09 May, 2014 21:13
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Hi Tilly,
What was the fault on your car in the end?
by Jordy
Fri 09 May, 2014 21:07
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I can't wait to get it sorted out!
Just to know what the problem is would be good.
I've got a day off Saturday so I'll spend some time underneath checking all the hoses etc.
I'll google that box that was suggested further up the post as well.
by Jordy
Fri 09 May, 2014 21:03
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Hi janijoeli,
I tried unplugging the MAF as it was running, and before starting engine with no joy.
Thanks anyway.
by Jordy
Wed 07 May, 2014 11:00
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Would perished hoses allow the engine to start and run fine for a minute or so before going rough?
by Jordy
Wed 07 May, 2014 09:07
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Thanks Del. I know the error codes pointed towards fuel delivery (that's what the mechanic said), and as I'd already changed the FPR, I was kind of hoping it was the fuel pump just so it'd just get fixed! After I've looked at the area that Southernboy suggested, I think I might try and limp it to th...
by Jordy
Wed 07 May, 2014 08:17
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Wow, thanks for the info Southernboy. I'll take a look and see if I can find anything.
I would've taken it straight to the garage but as the RAC towed me once, they won't tow me to the garage for the same problem! I'll update as soon as I've had a look.
by Jordy
Tue 06 May, 2014 15:53
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I know I'm clutching at straws to an extent now, but before I get the fuel pump done, is there any chance it could be to do with the fuel injectors at all? Another guy was supposed to be coming up this morning with a code reader but he didn't turn up.
by Jordy
Fri 02 May, 2014 22:40
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I've taken the parts off just after the MAF and checked them for holes and found none.
Only thing left is the fuel pump. Please God let this end!!
by Jordy
Thu 01 May, 2014 17:48
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Sorry, I didn't see the codes as the machanic was dealing with it and I assumed it would be sorted out there and then.
I saw there was a hose from the FPR which ran down between the engine. Where does this go and is there a possibility that could have ruptured?
by Jordy
Thu 01 May, 2014 16:44
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I've just fitted the new FPR & it has made no difference. Boo.
Before I go down the fuel pump road, could anyone tell me how to go about checking the vacuum hoses, & their locations please?
Any pictures would come in handy!
Thanks.
by Jordy
Thu 01 May, 2014 14:50
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

A quick update: I had a diagnostic tool (DT) put on it and it showed all oxygen levels were even and acceptable, but it was pointing towards the fuel delivery as the most likely cause of trouble. The mechanic said the DT rarely points to the cause directly, instead it will merely give an indication ...
by Jordy
Fri 25 Apr, 2014 23:18
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

I forgot to mention that when it's chugging away it smell of unburnt fuel.
by Jordy
Fri 25 Apr, 2014 23:16
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Re: Rough idle & running

Thanks for the quick responses - very Much appreciated. I spoke to a friend who knows someone with a code reader and he asked him to come over which he said he would. I decided now to stop replacing bits as, like you say, is the old needle&haystack thing. At least I get to know a bit more about ...
by Jordy
Fri 25 Apr, 2014 20:46
Forum: M Roadster and M coupé
Topic: Z3M New owner
Replies: 15
Views: 3120

Re: Z3M New owner

I never liked BMW's before I got my Z3, now I wish I'd got one before.
Yours looks ace and I really want to start looking to get a better one than the one I already have.
I would start doing my one up but the mileage is way too high to make it worth it.
Nice pics of your car!
by Jordy
Fri 25 Apr, 2014 20:36
Forum: M Roadster and M coupé
Topic: Rough idle & running
Replies: 49
Views: 8139

Rough idle & running

Hi all, I have a 2.0 Z3 1999 and am having trouble with it actually running. It starts up fine, then after a minute or so the /!\ light and CEL or EML comes on and it goes all lumpy & rough. Trying to rev it just results in nothing. If I turn off the engine and try to restart it straightaway it'...