Help Needed Please Bad idle

[billyc180k]

C180K 2002 271ENGINE 1.8

Pull up to junction surges forward and stinks of the cat after a run keep getting code p0030 02 heater circuit bank 1 sensor 1
also says something about not reaching temprature

I have put new cam magnets on and wiring loom adapters
Upstream Lamba sensor
Air Mass Meter
Thermostat
And not forgetting the breather pipe under the inletmanifold (crank case Breather)

Took it to a MB specialtist and the said the upstream lamba sensor was slow it was new and genuine!!!!!

So i am now back to square one
Any advice suggestions will be brilliant cheers

 

[Dieselman]

Are these sensors heated, if so is there power to the heater connections?

 

[BlackC55]

Is there oil in the loom? I
s there oil at the lambda sensor connector?

There is also another breather pipe under the inlet manifold and this has a one way valve between it. The one way valve can block up or not be "one way" anymore.

I have also known the timing chains to stretch causing all kinds of weird running and fault codes.

 

[billyc180k]

The camshaft magnets just started to leak so they where renewed i had a small misting of oil at coil pack 2 but no where else at all ?

The wiring is ok i have checked the feeds to it but i think what is coming out of the exhaust is bad not the sensor Timing chain hmmm

How bad is the timing to check ?

also any ideas where the one way valve is i can see one

Thanks Guys

 

[BlackC55]

The inlet manifold has to be removed even to see the other breather pipe.

The timing is striaght forward to check. Use the markings on the crank pulley and the cams to see if it all lines up.

 

[billyc180k]

what would you check first and btw

the upstream lambda voltage is 1.47 to1.60 and the rear is around 450 mv do this sound about right cheers