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Discussion Starter #1
I have these two codes come up, I swapped the vanos solenoids over codes does move, ive taken cam cover off and checked the timing, checked the power to the solenoids and not sure what to try now. anyone any ideas?
 

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what method was used to check the timing,
common issues are chain stretched or vac pump pails pulling the exhaust cam to a stop and chain slip but that tends to bend valves when happens, another issue can be the oil control rings in first journals on camshafts engine running and hot open oil filler and f can see oil being sprayed across from them they are worn or snapped, believe to be a updated part from bmw now made of nylon same as oil control rings on pistons,
another common thing is bottom gear sprocket wears and feathers off until chain slips,
 

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when done done head gasket did you use new bolts for camshafts and crankshaft, was bottom sprocket and chain it replaced, if not how many miles has engine done
 

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Discussion Starter #5
Umm can’t remember. Only main chain was replaced not the very bottom our parts dealer said there wasn’t a part they did for that
 

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all pretty vague then, normal practice is to fit timing chain kit includes and must do bottom sprocket and must do chain must do tensioner must use new stretch bolts on camshafts and crankshaft,, if old bolt were reused they will not hold the the free wheeling sprockets over time the heat will loosen them off and will move on the camshafts or crank and timing will jump. IF ITS MOVED IT WILL MOVE MORE AND BEND VALVES
below link full kit with vvt the stretch bolts are £3 for camshafts and £8 for crank direct from bmw and must be renewed every time undone
 

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Discussion Starter #7
Everything is lined up so wouldn’t have thought it was that. Flywheel locked cams all locked nothing has moved
 

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if tensioner spring has gone weak would make timing move, if vanos sprocket failed would do the same if oil pressure was low could also do same trick as timing in dependant on oil pressure
 

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no a seal kit,,, when they fail its replace the whole sprocket, also if vac pump on other end of exhaust cam can also cause drag on the chain and cause a mismatch in timing at best and total destroy all valves at worst, as what would sort it hmmm its one of those things ie so much can cause it and so much needs to be replaced every 60,000 miles ie timing chain bottom sprockets tension and bolts, as a min around 120.000 miles both the vanos sprockets good to do also the oil solenoids that control them,
are you sure the fault codes are not old codes from before ie have they been cleared and the drive car see what comes back,, also mould lock at oil pressure test and compression test as well,, you could also buy autocom cdp plus off ebay and with that can live data scan it see the vanos positions and if they advance with revs as they should below pics shows a 1.4 2008 after new chain kit and running correctly,
1,4 on idle vanos positions.png
1.4 on idle 02 sensors.png
 

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Discussion Starter #12
My Inlet reading 119/120
And exhaust 120 doesn’t move

the delphi software does it do other makes?
 

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Discussion Starter #13
So when you rev the actual position will go up? So mine are 119 it will get higher
 

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autocom will read nearly every car on the road its garage level and cheap as chips compared to the garage gear,
so would appear yours are 4 degrees a drift, the question i would have is that due to low oil pressure problem,, rarely have seen very drty ol or cheap oil filter cause issue with vanos timing ie anything that effects the oil pressure to the vanos will effect how they work ie its oil pressure that forces them to rotate to alter the cam to crank and cam to cam timing vie the ecu controlling it in split seconds depending on the load on of load off of the engine throttle as such.. so would be a good idea to start form a known good spot ie good oil and good filter, also there is no middle ground with the prince engines when it comes to timing chain as every thing depends on knowing this is correct,, put it this way every time i get one in front of me my first question to anyone when was timing chain done last if car has done over 60.000 miles then its a must do job before much else,, as a old chain will cause lean running and can cause rich running will cause 02 sensors and cat issue will cause pcv system plausibility faults and on most doing a complete kit and must include the bottom sprocket as these dont last past 60k as feather off the teeth and widen the teeth dips and you can rotate the crank within the dips and that will easy be 2-4 degrees of timing that moves around depending on throttle on or off, also the chain stretch and poor after market chain tensioners ie i always these days at least fit a genuine chain tensioner as they are so much better and longer,, ie latest spec N18 and B series bmw chain tensioners are the best and fit, £53 from oceam bmw plymouth, ocean also do latest chain set ie guides bottom sprocket and chain and bolts around £200,, truscots ie the thp engine is same engine as mini sometimes they are cheaper for some parts..
even compression tests can be altered my a engine with to much over lap from chain stretched etc.
 
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