C5 2.0 Hdi Vtr 55 Plate 40k

[coastline taxis]

Been on with this one all day. No management light or sevice light and no codes present. The car can only be described as if its got the hic up when driving ticks over lovley and revs up lovley just wont drive without hic up ing. drained fuel and cleaned the fuel lines changed filter checked airflow and vacum pipes also checked wiring and intercooler for leaks and theres nothing wrong and all looks ok.

Any ideas would be welcomed if not guess it will have to go to town center citreon

[techbod]

could be injector/s?

[Randombloke]

Been on with this one all day. No management light or sevice light and no codes present. The car can only be described as if its got the hic up when driving ticks over lovley and revs up lovley just wont drive without hic up ing. drained fuel and cleaned the fuel lines changed filter checked airflow and vacum pipes also checked wiring and intercooler for leaks and theres nothing wrong and all looks ok.

Any ideas would be welcomed if not guess it will have to go to town center citreon

 

Thought we'd had this one before - throttle pot or crank position sensor?

[coastline taxis]

Will check them tomorow many thanks. Sometimes you forget the obvious

[techbod]

been there and still doing it ( old age I guess ) :lol:

[coastline taxis]

Ok starting to make a bit headway now. Finaly got some fault code out of this one

multiplexing no communication wit bsi unit

Unauthorised stop request

So used scaner to go into bsi unit and found the following code engine torque regulation anyway cleared both codes took car out and drove fine for 6-7 miles then started hic uping again plugged back in and got the engine torque regulation.

 

Any sugestions at all

[iannez]

you should not have an engine fault in the bsi mate. you sure it was'nt inj ecu you were in. clear the faults and drive or get some one else to while you keep an eye on cam and crank sync in live data.

[coastline taxis]

Well had to admit defeat its now at town center cit getting sorted. looking forward to seeing what the prob is

[coastline taxis]

new egr fitted and still hiccuping. just had another look and engine torque regulation fault is still in bsi any suggestion

[iannez]

give the garage a ring mate and tell nigel its still the same.

[coastline taxis]

ok will do. double checked and torque regulation fault is definatley in BSI unit. phoned snap on and dealer coming tomorow to check scanner just in case its at fault as you never know. cheers

steve

[techbod]

what was the code? it sounds like a fuel/air adaption fault and possibly fuel rail but the code would narrow it down.

 

from BBA.

 

Before sending the unit try the BSI Reset procedure as this may cure your faults:

 

Put the driver's window down, lift the bonnet and ensure all equipment is switched off.

 

Ensure all doors are closed and remove key from the ignition.

 

Wait for 3 minutes, disconnect the vehicle battery and wait 15 seconds.

 

Reconnect the vehicle battery, wait a further 10 seconds (do not open doors.).

 

Switch on the side lights through the driver's window.

 

Switch on the ignition and check system's functionality.

 

Hold lock button on key down for 10 seconds.

 

Remove key open & close door test central locking system.

 

Start the engine and complete the system's check.

 

Failure to follow this procedure could result in incorrect operation of many BSI related items.

[coastline taxis]

hi dave

how you doing. Good to see you back and getting on with things

[techbod]

hi mate and yes life has to go on so im back on track :rolleyes:

[coastline taxis]

Glad to hear it. Now i know its not citroen but how do i go about checking the map sensor on a renault scenic 1.6 petrol

[techbod]

Manifold absolute pressure (MAP) sensor

Checking

Check vacuum hose for blockage or leaks. Replace faulty hose.

Checking supply voltage - Fig. 11

Technical Data

Terminals Voltage

A & C = 5 V

Ensure ignition switched OFF. Disconnect MAP sensor multi-plug. Switch ignition ON. Check voltage between harness multi-plug terminals.

Checking operation - Fig. 12

Technical Data

Terminals Condition Voltage

A & B Ignition ON 4,8 V approx.

A & B Engine idling 1,6 V approx.

A & B Engine speed increased 4,75 V briefly

Ensure ignition switched OFF. Do not disconnect multi-plug. Access MAP sensor multi-plug terminals. Switch ignition ON. Check voltage between multi-plug terminals. Start engine. Allow to idle. Check voltage between multi-plug terminals. Increase engine speed sharply.

Check voltage between multi-plug terminals.

 

 

its still a PSA group :rolleyes:

[coastline taxis]

cheers