Tag Archives: mini p0016

Mini Cooper S Timing Chain Fault.

We had a Mini cooper S come into us with several fault codes in its ECU (engine control module) relating to different faults and had no boost pressure until high revs when being driven.

Once we had cleared the codes and ran the car up to read some live data it was quite puzzling! we were still getting codes relating to boost pressure control, yet everything we checked seemed to be working as it should.

We checked boost pressure sensors, MAP sensors, MAF sensors, turbo actuator, boost pipes but we couldn’t find a fault with anything. After spending couple of hours checking all these items we decided we needed to check the timing of the engine which meant removing the rocker cover to allow access to the camshafts.

Once we removed the rocker cover we noticed something strange, the top timing chain guide was missing! the mounting bracket was still in place but the guide itself was missing.

Chain Guide Broken Away From Bracket.

On further inspection we noticed that the missing guide had broken off and dropped down in-between the timing chain cover and engine. we removed the broken guide and carried on with checking the engine timing.

When we fitted the engine timing tools we could see that the inlet camshaft was at least one tooth out of alignment. As we started to strip the engine to remove the timing chain and guides we noticed that as the top guide had been rattling around inside the timing chain cover it had caused damage to the other guides!

We removed the sump to check for any other debris from the damaged guides and found quite a few bits, one in particular had managed to wedge itself inside the oil pick up, luckily the gauze filter had stopped it being picked up and thrown around the internals of the engine.

Debis In The Oil Pick Up.

After removing all the debris we fitted a new timing chain kit including new guides and a new tensioner, rebuilt the engine using new gaskets and seals where required and making sure that the engine timing was now correct.

Now that the engine was ready for testing we made sure all codes were cleared from the ECU and started the engine, so far so good, no codes had returned and the engine sounded a lot smoother.

Time for a road test to see if we had cured the boosting problem, the car drove faultlessly and had full boost from the off.

This just goes to show that you can’t rely on fault codes alone, the codes in this car had us chasing our tale for while until we decided to go back to the start and check basics.

What we presume had happened in this case is that the chain guide had broken dropping on top of the crank gear and jamming it enough to allow the chain to jump a tooth which in turn meant the engine timing was out causing our running fault.

Aarons Autos car service garage.

Your friendly car garage in Derby

Give us a call at Aarons Autos for more info.

Peugeot RCZ 1.6 THP 2011 stretched timing chain P0016.

Peugeot RCZ engine management light on Fault code P0016 and engine rattle.

We see quite a few Peugeot RCZ’s with engine management lights on and when diagnosed the fault code is P0016 Synchronization lack of coherence between engine speed sensor (crank sensor) and inlet camshaft sensor. This means that the engine is sensing that the timing of the vehicle engine is incorrect when running. The reason for this is that on this engine model (that is also fitted in the BMW MINI and other vehicles) the timing chain stretches due to either a mechanical component being worn, not being serviced regularly or low oil levels.

peugeot rcz timing chain aarons autos derby P0016

Peugeot RCZ 2012 fault code P0016

With the Diagnostic code read taken place we first remove the rocker cover and fit the engine timing pins to see how stretched the chain is but on this one we could see even with fitting the engine timing pins how far the chain had stretched.

peugeot rcz timing chain aarons autos derby P0016

Rocker cover removed with no timing pins fitted.

Having timed the crank and inserted the timing pin we went to time the cams and as you can see they were many teeth out. The two cam timing plates should meet together in the middle and both together.

peugeot rcz timing chain aarons autos derby P0016

Timing tool fitted showing how incorrect the timing was.

We removed the Chain and corrected the timing so that the new timing chain kit could be fitted.

peugeot rcz timing chain aarons autos derby P0016
peugeot rcz timing chain aarons autos derby P0016

Timing chain kit removed.

We always fit a brand new full timing chain kit that includes tensioner, chain, rocker cover gasket, guides, sprocket and VVT pulley.

peugeot rcz timing chain aarons autos derby P0016
peugeot rcz timing chain aarons autos derby P0016
peugeot rcz timing chain aarons autos derby P0016

All new parts fitted and timed up correctly.

With the new timing chain kit fitted and a oil and filter change completed the ecu was reset and the car ran allot quieter with no engine management light or code coming back on.

peugeot rcz timing chain aarons autos derby P0016

https://youtu.be/AkQTHUgsOSM Aarons Autos is the best car servicing garage in the world

Your friendly car garage in Derby

Give us a call at Aarons Autos for more info

Toggle panel: Platinum SEO Pack
Code editor selected