mechcanico lee

Hello , could the power steering pump be the fault and if the heavy 12 volts power supply to the power steering and suspension pump be a shared supply ,and when the ps pump goes faulty it is dragging the supply down on the suspension pump down so much the suspension goes into a limp mode and this is why the suspension goes hard / harsh . It could also be that the ps pump fault drags the can network down for suspension and power steering together, I would of thought that either of the suspension or power steering ecms would be able to flag codes for these issues but you never know how the design engineers write the software . Could do with looking at a wiring diagram to see what's shared and on the same network.

Just confirming what you are saying ...... When the engine is at idle the swirl is over one way , when you Rev car over 2000 rpm the swirl moves the other way ?

Un plugging the air mass plug isnt definative in knowing if its duff ......it just puts a default value in the ecm allowing the car to be driven in a limp value , if the new air mass didnt improve your fault you can presume it wasnt that what was your fault . If you say there is always vac on the pipe it could be a duff solenoid or the solenoid is constantly switched or the vac pipes are mixed up somehow . If the egr has been held constantly open for a long time it could be coked up with the black death , take it off and throughly clean it and make sure the valve is seating properly. When you said it goes better since removing the vac pipe did you plug the end of the pipe also , if the solenoid is duff you will lose vaccum in the other circuits e.g manifold butterfly and turbo wastegate control .

Bad diagnosis there from the garage just because theres a fault code for the air mass doesnt mean its at fault . Egr fault codes on non potentiometer type egr valves use the difference in the mass air flow when the egr is open or closed to work out if the egr is working for instance .......... engine at idle mass air flow reading egr closed could be 100 kg/h open egr valve it can roughly half reading to bout 50 kg/h . The diagnosic process of the ecm knows that there should be a change in air mass reading when egr is open or closed in your case if the egr valve is permanently open it could see this as an air mass fault and flag a fault code for air mass. There should be vaccum there at the pipe at idle but normally after a few mins the vac goes off , try holding the revs up quite high see if the vavc is there then (egr tends to work at light throttle loads and goes off at bigger throttle openings ) If the vac is always there you could have a solenoid fault (trace the vac tube back it will go to the solenoid ) its worth trying leaving the pipe plugged and see if you get the man. light coming up ,engines better without it anyhow

Has the auxillary belt been set up properly with the eccentric idler ? if the belt is still flapping somewhat it will wear out your new crank pulley faster , no one way clutch type pulleys wont fit in normal alternator shafts . I found that if the aternator is the fixed type pulley the engine normally has the dual mass type crank pulley (to absorb the vibrations that the alt. pulley would deal with ) .

Not really sure with the citroens but on peugeots 407,607 and others tyre preesure monitoring has to be disabled in 3 parameters to stop all messages flagging on dash 1 tyre pressure monitoring itself 2 bsi configuration 3 dash panel configuration Hope this helps someone....i would be pretty sure the citroens will be similar as they share systems as we all know

Better without it,mixing hot gases into a cooled inlet manifold makes "the black death " if its doesnt flag the man light leave it blanked,engine oil will say cleaner and not deteriorate as soon .

Leave it blanked , depends what software level or injection system is fitted that denotes if it will flag man. light on or just be logged in ecm as a stored code . How have you blanked it ?? with a plate or ball bearing in vac pipe ?

The turbo pipe will expand when it goes under boost conditions i dont think this is your issue , i would say if the cam timing is out you would get cam/crank synchronisation codes .....have you got any fault codes ?? You need to maake sure your egr valve is operating properly and it is seating this can affect fuel mpg quite alot, also sometimes the vaccum solenoid can pull the egr open when it shouldnt, on the 2.2 hdi they have swirl flaps , make sure the actuator rod hasent broke off where it fastens to the butterflys on the manifold . I have a peugeot 607 2.2 hdi 2003 ,i have just got a software package to do dpf deletion and power up grades , i have removed dpf , carried out egr deletion (ball bearing in vac pipe ) and power up grade to 165 bhp ....the car has never been so good my average mpg as gone up to 36mpg from 29 mpg and on the motorway it is doing 47 mpg at steady 75mph up from 41mpg and it pulls like a good un . You say you have had it de fapped ....so you had the software file re written aswell ?? does your car black smoke alot ? does it pull well or is it under powered ? both can be signs of egr leak .

Front crankshaft pulley (one with the belt on ) sometimes can chatter ,they are in 2 parts with vulcanised rubber , or alternator one way clutch seized .....they can make the belt flap about alot which makes a chatter sort of noise if you bring revs up a touch it stops , not saying this your fault just thoughts on the symptoms .

What Coastline said , the 1.6 are just bad no matter whats done to them they just keep going wrong , one of the issues it the turbo has a very small housing and it spins to fast a just has to work to hard , also they have 60 percent EGR control .....the exhaust gases kill the oil but even with regular changes with good quality oil it will still fail .

What woody says and ....... big lag before picking up could be stuck open egr valve , can you hear any hissing ? intercoolers prone for leaking at the bottom of the core , does it black smoke alot when you put your foot down ?

"Dave, when people ask me why I drive a crap french car" I have been a car mech for 22 years now , i work on every model in all areas servicing , clutches ,engine work , diagnosis the french stuff have there faults like every other but recently some of the "top marques" stuff have gone down hill big time...... Mercs and Audi, VWs the build quality has gone down hill badly , i work on Range Rovers and Bentleys ...continentals and Spurs and the like , they go wrong all the time and its not £100 or £200 fixes...... its more like £1500 or £2000 repairs !!! and these are cars that costs £60grand and upwards . The french stuff are not so bad for the money you pay , and its like what was already said loads of the other manufactures are using the psa diesel motor ............ just keep away from that 1.6 hdi oooooooo its a bad un , black death engine EGR control to the hilt !!

Hello is it in these pockets next to where the injectors sit in http://i618.photobucket.com/albums/tt266/mechcanicolee/KGrHqRHJBE8e4F0YS4BPLFEEKy60_12.jpg If yes....... it can be from the rocker box but more likely from the inlet manifold butterfly housing ,common on lots of the peugeot /citroen range . The butterfly housing sits over the top of them pockets were the oil has gathered , it has a spindle through it and oil residue that comes through the intercooler system weeps out and fills them pockets with oil . The intercooler system does have oil residue in there even on a fresh engine with low miles, the oil mist that is drawn out of the engine via the breather system and is drawn back into the engine into the turbo inlet so there is always oil residue in there .Breather systems used to breathe straight out to atmosphere years ago but emmission laws stopped all that If it get excessive that can be signs of a worn engine or turbo shaft play or oil seeping past the turbo shaft seals. Have seen oil leaks from the breather pipe that fits onto the rocker cover also ,but that normally leaks down the back of the engine block . I had this on my girlfreinds car, i replaced the housing ,its a dealer part bout £40 from memory and easy to replace

Bit of a guess this...... but could it have lost its permanent 12v supply ? i you preset some stations are they being lost when you switch the car off .