2.0 hdi running rough white smoke fault codes...

[taffy]

ok well 2.0hdi fuel pump jammed..replaced hp pump and cam belt...heres my fault codes..
p0230 fuel pump primary circuit...am i looking at the pressure rg on bk of the pump?
p0100 mass air flow...have cleaned but i cant clear the codes
p0200 injector circuit open
p0200 injector circuit open...yes 2 fault codes
p0235 boost controler

how can i clear codes without a lexia?
and what would you suggest is goin on here?
thanks in advance guys

[cc101]

Alright taffy, I had a similar issue on a 407 hdi I used to have, engine running very roughly, vibrating like hell, white smoke etc. Firstly code 0235 wouldn't have any effect on the engine roughness, it's a turbo boost sensor which controls the wastegate or variable vane turbo whichever one you have, if it has failed it'll throw the car into limp mode if you exceed a certain boost threshold. It's a red coloured block at the back lower part of the engine.

If it were me I'd get a compression test done to rule loss of compression out, cheap and quick. It does sound like it's a tooth or two out on the timing, also when timing up I wouldn't recommend turning the crank backwards.

Chris.

BTW on all hdi engines I've worked on the injectors have to be coded into the ecu, they have a long number on them.

[taffy]

well ive tried everything i can think off...cam sensor cleaned and gapped...cam timing adjusted on the cam from anti to clockwise and no change...changed fuel reg on bk of pump and thing on the top...checked wireing looks ok..pulled out accum rail sensor and cleaned no difference....

[taffy]

cleaned maf all relays...turbo seams to go ok just vibrates and runs on 3

[cc101]

I might be barking up the wrong tree but sh*t don't stink unless you stir it! I'm pretty certain that the injectors must be coded because the pump isn't timed so the ecu needs to know when to fire each injector. You could also get a leak back test done on the injectors, this will highlight any faults. I would as a matter of course before you change anything else get a compression test done.

Chris.

[electronmirror]

Surely the ECU picks up signal from cam position sensor and crankshaft sensor as the cue to fire the injectors.

Over the last few years on this forum comments all indicate that injectors are NOT coded on the HDI engine.

If it's chuffing white smoke that's unburnt fuel, so it could be a valve opening when it shouldn't, therefore cam timing out by a tooth or two. I know you've just checked cam timing.........but are you absolutely sure it's correct?

Just a couple of thoughts.

[taffy]

i think i will check it again...i have a prob with the cam timming..i cant seem to get anything to lock properly in the hole...it prob is timming...read a post a second ago about looking at the cam lobes on tdc

[cc101]

Over the last few years on this forum comments all indicate that injectors are NOT coded on the HDI engine

On all Peugeot hdi engines I've worked on if any of the injectors are moved around or replaced there is a section in Peugeot Planet (lexia equivalent) to code the injector to the relevant cylinder, just saying:-)

Chris.

I reckon the belt jumped a tooth or two when first started and bent a valve, hope not. Or if lucky it's just out a bit.

[citroenxm]

These arent like Renualt Engines..

On the 8v HDi engine, injectors DO NOT need coding.. I can promise that..! Also, the waste gate controller is not a small blue box, its one of the two (On 110 engines) solinoids up by the timing belt to the right of the drivers strut top...

This IS an unuseual one which Ive not heard of. But as said above, the boost controller wont affect the running on 3 or 4.
Air flow meter ALSO wont initally affect the idle of the engine..

The pressure regulator on the end of the pump could give a problem, more so though, it lets the engine run on after switching the key off, it works a little like a STOP solinoid on the old TD engines.

Have you moved any parts of the harness, it was interesting when you removed a plug and there was no change on that injector.

Just a thought, can you post a VERY GOOD clear picture of your engine up ... It might not show anything..

Theres no compression leak past the injector is there?

[citroenxm]

Im not sure where all this injector coding comes from.. At the end of the day, the ECU doen't Physically Talk to the injectors, it litterally just Triggers the Pizo switch in the top to fire the fuel.. in the Fireing order...

Ive swapped and fitted different ones to my car, and IIRC the pump is from the same engine as the replaced injector thats not working.

What are the condition of the wires to the injector plug?

Valves dont bend on the HDi, the rocker fingers are designed to break to take the impact and leave valves intact.

I replaced 6 rockers on a HDi that broke a belt at 55mph.. The valves were all fine, the car went on to do another 40k.

[cc101]

I wish the rockers did break when it happened on mine, on start up belt jumped a tooth and bent only 1 valve, all rockers were intact!

[taffy]

i havent got a multi meter yet but should have one soon..
its odd paul i can disconnect one injector and it stalls and another one jus slightly affects it...iv even moved the cam while belt still on throu 3 times and it wouldnt start adjusted it back and it ran...think i will take rocker cover off again morrow...ah its doin my head in lol!!

[citroenxm]

I wish the rockers did break when it happened on mine, on start up belt jumped a tooth and bent only 1 valve, all rockers were intact!

AHHHH Cc101, the Ole TD Xantias DO bent the valves and break the cams... but HDi's being a more modern design dont. Like its 2.1 12v predecessor...

[taffy]

is that pic how far ur timming was out?

[citroenxm]

Taffy,

You've not caught a wire somwhere, or plugged a plug back in the wrong place??

Hence asking for a good clear engine picture....