07 2.2 Relay Electrical

[hilly1127]

hi guys

I am after some advice

I have got a 07 2.2 lwb relay

and it hunts on idle when cold as soon as it warms up no problems

I have had a new egr,new maf,new clutch and dmf

and keeps coming up with fault code p0603 kam error

and every now and then the fuel and engine temp gauges go to max the to bottom then everything normal again any help would be great thank you 150000 on the clock

[coastline taxis]

the kam codes ( keep alive memory )are a nightmare to find and fix. they are to do with the adaptive drive cycles.  It changes every time you drive due to diferent input from driving and the sensors. when a battery is disconected it loses its memory. this is one of the reasons why there is a proper battery disconect and reconect procedure.

 

Chances are it will be the internal control module and you will need a diagnstic machine to sort it out. possible causes/test you can do are

 clear codes everytime before starting these test

check all batery terminals and do a bsi reset then check to see if code has come back.

Unplug alternator and start engine (alternators can cause this code when they give out to much resistence) and see if code has come back

Make sure alternator is putting out 14.4 volts and that battery is holding the voltage ok.

Check all earths around engine and dashboard

check all wiring around the ignition and ecu and ecm/pcm modules.

 

And finaley pray to any god you no as these are just horible codes to put right. take your time and double check everything and dont rush into buying pparts

[hilly1127]

hi thanks for the advise

will check all the earths and wiring

and see how it goes

[gas man]

bloody hell,these 2.2 puma lumps are complex things,mines been a nightmare recently,it cost 2.3 k to sort the injectors and fuel pump only had it 4 months,went for it based on it has a transit lump but not the transits rust problem and our other Citroen a picaaso xsara has been mega reliable,mines a 06 L1 H1 new shape relay,when its running its great but they seem to suffer complex issues