[Olivier A]

Hello, as I had no boost for awhile as I broke my MAF and got another on fleebay but still no boost( this as been post previously on peachpart asw ell as I was recommended a MAF from another car), I then was told to get the codes and here we are. If they could be explain in details to me that would be great. Thank you.

P1481: glow plug ( one or more on their way south?)
P1482: N14/2 glow output stage (the relay is only 1 year old?)
P1403: Exhaust gas recirculation ( I have Kartek,peachpart, electronic Mod, will I burned it when I was playing with the wires on the MAF? I reconected the EGR at the solenoid but still no boost?)
P0100 B2/5 Hot film MAF sensor ( I have a different MAF then the original one?)
P1630: Drive authorisation ( what? )
P1470 Faulty behaviour of intake pressure or of change pressure control (?)
P1222 R25 IFI/ DFI accelerator pedal position sensor (?)
Thank you all to clarify this to me as I have not a clue...
Olivier

 

[loubapache]

Olivier, lot of codes.

However, you do not know what codes are current because some of them could be stored a long time ago. I would suggest you clear all of them, then scan it again after some drive. Anyway, here are some extra info for the codes.

The P1481 ad P1482 might be related because it could be a bad (ground) connection. One of the corrective steps for P1482 is to check the ground connection W15, in right footwell (but I am not sure if right-hand drive is the same). You can follow the pre-glow output and trace the ground connection.

P1403: EGR vacuum transducer (Y31/1) so check the vacuum lines first.

P0100: obviously it is your MAF

P1630: Yes, Drive authorisation, but could be an intermittent issue some times ago.

P1470: Charge pressure control vacuum transducer (Y31/5). Same as above, try to check the vacuum lines first. Now you have two vacuum transducer problems so it might be a good idea to have the vacuum pump output checked.

P1222: Pedal value sensor (R25/2). Could just be an old intermittent issue.

Good luck.

 

[Olivier A]

Hello Loubapache,
Thank you.
I am still wondering what is the drive authorisation?
What are the transducers? Are they the little box where the vaccum pipes connect?
If this is it it might have been old fault as well as I disconnected the wastegaste and the EGR a while ago and drove like this but put them on again.
is this :control vacuum transducer, the waste gate one?
The MAF is gone then, is it? Or the car does not recognise it as its not for the same car?
Cheers.
Happy new year too.
Olivier

 

[loubapache]

The drive authorization is an anti-theft feature. The key hole has some transponder coil to communicate with the little chip on your square remote. At one time, you might have a non-start so the code might have been stored. I would not worry about it.

There are many transducers on your car. They all look very similar. There should be three vacuum lines on it: an input, an output, and another vent line (with a little filter). The use vacuum to move something mechanically.

Yes, that is the waste gate one. Remember Tom's thread about the waste gate? The P01470 and P0243 are the same code (Tom got the P0243, IIRC, and that is the OBD II version of your P01470).

The MAF does sound it is gone ot not recognized because you used from a different car?

 

[nickdub]

Hi Olivier,
Good to see your name on the site again.

Can't throw any lights on your questions but consider this a message of support from a fellow sufferer

Have a good one

Cheers

Nick

 

[Olivier A]

Cheers Loubapache and Nick.
Is your car OK nick?
I had to change a glow plug at 10.30 PM 3 weeks ago at -1.5 and snowing and this under a street light. Great...
It was stuck as well, and I broke a fuel line connector trying to wiggle it out... Great time... I finally did the spooky last resource thingy and start the engine, after the third time it spat it out with a bang and a flame.
Pfff... No drilling.
All the best.
Olivier

 

[loubapache]

Here is a picture showing where the Y31/5 is and how it look like:

 

[Olivier A]

Thank you Loubapache. dunno what to do with this one as its look OK... I might swap with the EGR one to see if anything happen... Who knows? But with the MAF in bad condition its barely no use...
All the best.
Olivier

 

[loubapache]

You would need to get MAF working first. These transducer could have blocked filters. I think member "mannaa" posted a filter clean/replacement to cure an EGR transducer on a 1997 E420 but they work similarly. Try to do a search.

 

[loubapache]

Just located the thread about the filter on the transducer by mannaa for his EGR.

http://www.benzworld.org/forums/w210-e-class/1472178-fyi-code-p0410.html

 

[Olivier A]

I would have to look at it tomorrow, its pitch dark here.
Thank you.
Hopefully monday or tuesday I can try another MAF and see is anything changes....
Thank you Loubapache

 

[nickdub]

Hi Olivier,
No mine's still parked up in the drive under about 8" snow - hovering around -1 C here for the last 10 days. Not so hardy as you Scots you see !

If you ever fancy a visit to Ross-on-Wye let me know - I'd love to see the magic glow plug firing trick. BTW how come the plug was an emergency ? I thought you could drive wtih one down for quite a while.

Cheers

Nick

 

[Olivier A]

I needed to be sure it will fire properly in the morning at those temperature, no time to do it the next day and as I am on vegetable oil I need all six in order as the car is outside. Brrr.... This is why.
Thanks for the offer, you never know?
I hope I won't have to do the spating glow again tho. It was the last NGK that I was swapping untill I got a replacement beru. All done now.

 

[Kajtek1]

Sure lot of things on one car.
I will add my experience about pedal positioning sensor (P1222). I had it coming on my non-turbo diesel and hesitated to spend $400 for replacement, but even the car was still drivable the error was putting engine into safe mode and after finding the sensor for about $300 I had to bite the bullet.
Having time seek it on junk yard. Its the small thing mounted with 2 screws next to brake booster. Hope on your left hand drive car it is in the same setup.

 

[Olivier A]

Oh dear Oh dear Oh dear... You must be kidding... The wee roundy thing where the cable is atach cost 400 dollars... EEK!!!
Expensive little gizmo...

 

[Kajtek1]

That's probably the most expensive potentiometer in the World.
I was thinking about adapting one from the household lights dimmers.
Whole thing cost $5

 

[Olivier A]

I am already thinking of opening it if the car is still not boosting in a week... Defo this is a joke... A bicycle is what I need

 

[Olivier A]

Boosting again

All OK now, didn't go for a long spin but so far I am back on business...
It was a fuse.
Today I decided to cut off the EGR Mod and open the box, and there was some fuses... One was burned... Replace it, all boosting again.
I will get the code read next week see if anything is still trouble.
Happy day

 

[loubapache]

I think you hit the jackpot.

Out of my own curiosity, I looked up the diagram and found that fuse controls both transducers (Y31). Now I see some articles call the charge (boost) pressure transducer Y31/2 and others Y31/5 but never both. It is probably a name switch at some point for these engines. The Y31/1 has the same name in all references, though.

If you follow the red lines, you see the K40F5 fuse controls both Y31 transducers.

However, the wiring diagram says this is a 10-A fuse but you had a 15-A fuse. I think I remember such inconsistency with another member before with the OM606 engine.

 

[Kajtek1]

Sir Lou is researching diesel
Is it just curiosity, or market research?