p0167- anybody shed any light?

[Altransit]

If you mean Map sensor that is Manifold Absolute Pressure, which will only measure atmospheric pressure but never a vacumn on a TD.

The vacumn lines are only for brake servo, heater/aircon controls and the EGR activation solonoid, which if a big enough leak in lines would cause problems with EGR positioning.


I think The MAP sensor on connects (or early ones and tddi at least), is connected by a small tube near inlet manifold, this looks like a vac tube, but if a vac tube has accidently been connected to this(seen it many times when pipes have all been mixed up) then will cause fuel cut/power loss.

Yeah sorry I got my MAF's and MAP's mixed up
Where is the tube on the MAF supposed to connect to, as I'm sure mine goes to the EGR

[winterheating]

Sorry meant to say p0149 is fuel timing error,

what i meant was if there is no harsh diesel knock, it is actual timing out, as when you do get diesel knock, its either fuel pump only out of time or the timing sol,onoid faulty.

[winterheating]

If you mean Map sensor that is Manifold Absolute Pressure, which will only measure atmospheric pressure but never a vacumn on a TD.

The vacumn lines are only for brake servo, heater/aircon controls and the EGR activation solonoid, which if a big enough leak in lines would cause problems with EGR positioning.


I think The MAP sensor on connects (or early ones and tddi at least), is connected by a small tube near inlet manifold, this looks like a vac tube, but if a vac tube has accidently been connected to this(seen it many times when pipes have all been mixed up) then will cause fuel cut/power loss.

Yeah sorry I got my MAF's and MAP's mixed up
Where is the tube on the MAF supposed to connect to, as I'm sure mine goes to the EGR

Air flow metres are normally on or near air filter, not sure wether the tddi connects have them though.
http://cgi.ebay.co.uk/2006-FORD-TRANSIT ... 5195edbc31

http://cgi.ebay.co.uk/FORD-MONDEO-FOCUS ... 4aa5e3a21a

Map sensors are either in boost pipes or connected via small tubing from EGR housings
http://cgi.ebay.co.uk/FORD-FIESTA-TURBO ... 3f028a79fa

that one above for the 1.8 tddi, is the seperate type, so that tube from it should go to boost pipe or the relavant connection on EGR to read the boost pressure.

yep same one
http://cgi.ebay.co.uk/TRANSIT-CONNECT-T ... 3f02891059

that tube from that Map sensor should have no leaks and go to this little connection on inlet manifold next to EGR valve
http://cgi.ebay.co.uk/Ford-Transit-Conn ... 518c849037

[Grenadekid]

Sorry meant to say p0149 is fuel timing error,

what i meant was if there is no harsh diesel knock, it is actual timing out, as when you do get diesel knock, its either fuel pump only out of time or the timing sol,onoid faulty.

Pheew thought id got another dud diagnostic kit

[winterheating]

One of the vac lines should go to this solonoid
http://cgi.ebay.co.uk/FORD-TRANSIT-CONN ... 45f4a4d7b6

This solonoid has another vac line from it to EGR valve and controls vacumn to it. It connects to tube with white stripe right below the EGR position sensor, NOT the MAP sensor connection on the inlet manifold.
http://cgi.ebay.co.uk/FORD-TRANSIT-CONN ... 3a5f0460f7

[Altransit]

WH .............. you're a star, thanks buddy

[Grenadekid]

Hi Altransit code back today again , noticed it after disconnecting the map sensor to take of the intercooler to clean it out as it was blocked, so i dont know if it was there before i disconnected the sensor. If it wasnt maybe you should check your intercooler isnt blocked if you have one and if you havent already looked at it as the code is now cleared again. I will keep an eye on it over the next week and let you know if it comes back. One other thing was the map sensor was very dirty also

[Altransit]

Hi Altransit code back today again ......................

Intercooler and sensor have been swapped previously with no effect, also boost pipes to intercooler were changed as they were "flexing" when revving. MAP sensor has also been replaced, and thanks to Winterheating, I also checked that all the vac/boost pipes were as they should be, and disconnected the boost gauge.
Still the same, and getting reluctant/slow to start again now

I need to check wiring to the MAP sensor now, but what effect should disconnecting the plug have Will it run without it connected

The timing issue keeps nagging at me, but the belt was replaced last year in case the previous one had been fitted wrongly
I'll see if Andyg can check the codes again for me, as I've been fiddling

[Grenadekid]

disconnecting the plug will throw up the fault codes associated with the map sensor being faulty also maybe some others as well, would be interesting to see what shows up and it will run with it disconnected but will flash the mil light or keep it on until codes are cleared. if i get a chance tomorrow i will disconnect mine again to see if it brings back that p0167, then at least we are getting closer hopefully

When you say the boost pipes were flexing, did you mean inwards or bulging

[Altransit]

I was hoping you wouldn't ask about the pipes, because I can't remember now I have a vague recollection that they were sucking inwards, but that doesn't make sense does it

The light doesn't flash, even with the ever present two fault codes, so I'm interested to see what difference disconnecting the MAP sensor makes. If it's no different, then the wiring could be suspect. The small pipe to the MAP/EGR looks good, and fairly new

[Grenadekid]

Hi Altransit if the pipe was sucking inwards this means no turbo boost or leak in system, read this post below, winterheating set me on the right track. My engine light didnt flash either it just run like a normally asperated engine with normal exhaust gases, strange i know you would have thought it would be belching out black smoke but ecu must have cut down fuel to cylinders without throwing up any sort of fault code indicating this except for p0167

viewtopic.php?f=2&t=76380

Are these pipes still sucking inwards or pulsing, especially noticeable under rev

[Altransit]

Are these pipes still sucking inwards or pulsing, especially noticeable under rev

The new pipes are much stiffer and don't seem to move, but I'll double check what they're doing now in the morning. The turbo doesn't have boost most of the time, except just after starting or restarting the engine. When it does have boost, that's when it belches black smoke The ECU must cut the fuel supply to stop this happening, thus cutting the boost

[Grenadekid]

dont know wether the turbo cuts boost or not although i cant see it, try holding the pipe from the turbo to the intercooler while somebody revs it and sqeeze it. You should feel pressure or if you want pull the pipe off at the intercooler and then you will definately know if the turbo,s boosting under rev, if so reattach that pipe and take off the one at the other end of the intercooler and check for pressure coming out of that. Was that intercooler you put on new if so we could still be barking up the wrong tree but ive a feeling with the reduced fueling code you have its narrowed down to a turbo or lack of turbo problem

Theres probably some type of electical or vaccum actuator which works the waste gate and that only works at max turbo boost which you wont get revving it as far as i know only driving. this could also be the problem

[Altransit]

I'll try all that in the morning, weather permitting, many thanks for the pointers, this is the most practical help I've ever had with this problem
The turbo was a brand new replacement last year BTW, as was the EGR, but the intercooler was swapped with one from my sons mates car, and then swapped back. Seeing your other thread, I'll try cleaning that too, as well as the sensor

[Grenadekid]

we will talk tomorrow evening m8 going to bed now been a long day at work and a heavy one tomorrow, everthing in the yard decides to give trouble at once