it might be that someone is local to you. Where are you?

 

Hi,

Well I work in stoke on trent (ST4) but I live in Newport, Shropshire (TF10).

I'm willing to drive just about anywhere in West Midlands/North West region!

I'll pay someone if that helps - I just need to put this MAF issue to bed once and for all.

Thanks

Shaun

 

Maf s

Surely you should be convinced by now that it is not a Maf
issue unless it is a fault in the associated circuitry and not the actual Maf itself. The Pierburgh+Mafam is extremely unlikely to have failed and no doubt Ron would have exchanged them if at all suspect. Did you try the Mafam in steps between
1 0clock and 3 oclock? I got smoke at 1 oclock and excellent running at 2.30! i.e. I got results when I altered the setting, did you? Whatever you do do NOT buy the
Xpart substitute type, Ron has stopped supplying them.

 

maf check

Hi get in touch with keith he has a T4 of his own also lives in shropshire not to far from you hope this helps and Keith does not mind

 

ps: when unplugged there is still no boost, only this time there is lots of black smoke aswell.

It's not the MAF then by the sound of it. I would be looking for a split intercooler pipe for a start. Sounds like you have a boost leak somewhere to me.

 

Already taken the hoses out for inspection. They're ok.

 

One other thing to check is the small diameter hose from the turbo to the turbo actuator and make sure this has not come off. It's below the MAF unit and can be accessed once the top engine cover is off.

Also did you check the O-Ring seal on the intercooler inlet/Outlets as these have a tendancy to move and leak.

I have a spare MAF and your more than welcome to try it if needed but i believe the problem is boost related.

 

yes all of the hoses were ok - I've also had a fellow enthusiast who is quite handy with a ZT check everything just to make sure I hadnt missed anything.

I'd love to take you up on your offer to try a genuine Rover Bosch maf if you have one. I'm willing to travel lengths and breadths of the country to get this sorted out!

You might even spot something obvious that I had missed (I live in hope!)

 

I live 5 mins of Junc 2 M5 and can have a quick look this weekend if you wish? I have a double garage and ramps so rain is not a problem.

I have a spare old Bosch MAF (which is OK) and can also swap over the Bosch MAF off mine if needed, but i Don't think that's your problem.

 

thanks matey I've just sent you a message.

Cheers

Shaun

 

Hi,

Just to add what we checked. We took off both hoses to/from the intercool and inspected them and then refitted.

We then looked all over the air intake, air filter, maf area. After that we noticed a small pipe that had come off from the air pipe after the maf. This then connects to the air filter area. Still no change, but like has been said when that maf was unplugged the amount of smoke......

Anyway by then it was getting cold and anything beyond that is probably too much for me to take on. We did want to look at pipe work at the back of the engine but cant really jack the car safely.

Hope you get it sorted, i know how much he likes that car, and so do i.

 

Wastegate stuck?
Turbo?

You will still get boost with the maf disconnected plus a little smoke at low revs.

If you are certain that there are no leaks in the intercooler hoses (no hissing noises?) then lots of smoke suggests the turbo is not spinning up.

Ron

 

All I know is with the MAF disconnected, there wasnt any noticeable increase in power. And there was lots of smoke - not a little.

With the MAF plugged back in, smoke gone, still no boost.

Ti Rich has kindly agreed to have a look this weekend and plug in a genuine Bosch MAF so we can elimate it.

 

My guess is that your maf is faulty and reducing the fuelling, hence no smoke. But is NOT the cause of the lack of boost.

I've not come across any M47r that suffers from such massive overfulling with the maf disconnected. It all points to a lack of air from the turbo not spinning up or a big air leak / jammed egr valve / stucj wastegate.

TiRich's maf will prove either way.

Ron

 

thanks Ron - hopefully I'll have some new answers on sunday!

 

I think Littleenglander had a much happier drive home..........i'll let him tell all!

Sorry to hear that a certain garage diagosed this as a MAF fault - need to look harder guys.

 

Special thanks to Ti Rich

Million thanks to Ti Rich for coming to the rescue and fixing my car! Regular visitors to the forum may be familiar with my ongoing power problems!

As Richard discovered, it was the wastegate linkage which had come apart - the MAF, EGR valve, fuel pumps, hoses etc were fine all along. All that was missing was a tiny component to keep the two ends together more securely - which I will now look into getting. Richard also kindly did the air intake mod for me aswell.

Journey on the way home? Well, an amazing turn around. 1st, 2nd and 3rd especially - with my foot on the floor and I'm flying into the back of the seat. And all this is without even plugging in my MAFAM from Roverron!

Thanks also to many others on the forum (especially Mat aka MY04MGR who checked my hoses last weekend) who have helped me with this problem. I really am grateful and set to hang onto the car for at least another couple of years now. Shame on Endon Motors in Stoke on Trent (ex Rover aswell!) who wouldnt have it when I explained I didnt think it was the MAF. They couldnt be bothered to check the car properly, and just wanted to make a quick 300 quid for a new MAF. I won't even mention how bad the customer service was.

Quick plug for Richards ZT CDTi that he is selling - exceptional car and goes like a rocket - first to see will buy I'm sure - was even tempted myself when going out for a run in it this afternoon!

Thanks all - the forum came through in the end (never doubted it for a moment ;-)

Shaun.

 

Million thanks to Ti Rich for coming to the rescue and fixing my car! Regular visitors to the forum may be familiar with my ongoing power problems!

As Richard discovered, it was the wastegate linkage which had come apart - the MAF, EGR valve, fuel pumps, hoses etc were fine all along. All that was missing was a tiny component to keep the two ends together more securely - which I will now look into getting. Richard also kindly did the air intake mod for me aswell.

Journey on the way home? Well, an amazing turn around. 1st, 2nd and 3rd especially - with my foot on the floor and I'm flying into the back on the seat. And all this is without even plugging in my MAFAM from Roverron!

Thanks also to many others on the forum (especially Mat aka MY04MGR who checked my hoses last weekend) who have helped me with this problem. I really am grateful and set to hang onto the car for at least another couple of years now. Shame on Endon Motors in Stoke on Trent (ex Rover aswell!) who wouldnt have it when I explained I didnt think it was the MAF. They couldnt be bothered to check the car properly, and just wanted to make a quick 300 quid for a new MAF. I won't even mention how bad the customer service was.

Quick plug for Richards ZT CDTi that he is selling - exceptional car and goes like a rocket - first to see will buy I'm sure - was even tempted myself when going out for a run in it this afternoon!

Thanks all - the forum came through in the end (never doubted it for a momnent ;-)

Shaun.

Well done TiRich shame on Endon Motors. (the so called 'experts' don't seem to get any better do they?)

I was clutching at straws when I mentioned the wastegate but didn't really believe the turbo was the culprit.

Ron

 

Yes thanks Ron - I think you were the first to mention the wastegate!

cheers

Shaun

 

Well that is a result!

I was going to say bring it over next weekend if you were stuck as I too have a spare Maf

You are still welcome if you want to bung it on the machine anyway as I will probably have T4 out because I may well be setting up a car or two for Power Washers

 

What a great ending! Well done lads.

 

It was baffling me as i connected a boost gauge and was getting zero boost!!! The car was almost impossible to drive.

Turbo was not seized, no hose leaks, and it was only when i put the car on ramps that all became clear.

Keith - I did check for any fault codes (non found) and it did appear to communicate OK with my OBD tool.

Only problem I can see now is where on earth you get the correct size circlip from??? I made a temporary fix using a spring washer but don't believe it will last long (although it did prove the point).

 

Is it a circlip or an 'e' clip?

 

Well I don't know for sure as it's not there Dave!

 

OK, i wasn't sure if it was specific to the turbo!

 

Screwfix?

http://www.screwfix.com

 

well, still got a great big smile on my face...TiRich's fix is holding up so far!

The whooshing sound when the turbo kicks in is so prominent now - I don't think my turbo had ever worked properly since buying the car. Even when the MAF worked and the power was ok it never sounded like this. I'm even getting wheelspin at the moment - imagine that! lol

Also taking care going over speed bumps and the like - I really don't want the thing to come apart again! Anyway, hopefully I'll come across something which will hold the wastegate together more securely. But any suggestions gratefully received!

 

well, still got a great big smile on my face...TiRich's fix is holding up so far!

The whooshing sound when the turbo kicks in is so prominent now - I don't think my turbo had ever worked properly since buying the car. Even when the MAF worked and the power was ok it never sounded like this. I'm even getting wheelspin at the moment - imagine that! lol

Also taking care going over speed bumps and the like - I really don't want the thing to come apart again! Anyway, hopefully I'll come across something which will hold the wastegate together more securely. But any suggestions gratefully received!

I am begining to wonder if your car has been remapped. A standard 135 (with air intake mod) should not be wheel spinning in 2nd/3rd one thinks!

Anyway, glad to hear it's holding together (but DO fit that clip) and many thanks for the wine which went down a treat last night!

 

well if it has I aint complaining!

thanks to everyones suggestions for the clip - I'll check out Halfrauds and Screwfix. If anyone happens to stumble across a similar website which sells the bit that I need, please don't be shy in coming forward with the URL.

glad you enjoyed the wine Rich!

Shaun.

 

Just found out the tuning box was OFF when i took you for a spin so it was in detuned 145-150BHP mode.

I thought it was a bit slow!

 

Talking about spinning - even with a new set of tyres I bought yesterday - my car was wheel spinning this morning at the traffic lights on a steep hill going up! CDTi with no mafam! Wow! Who needs the 2.5 V6 ;-)