Cam Chain

[CARBON SINK]

Quick question,
Does the bronze link on the cam chain trigger the cam position sensor?

[vinnY]

not sure but i just changed my cam chain and noticed there wasn't a brass link on the new chain, everything went back together fine without any noticeable problems

mind you i was using aftermarket items

[CARBON SINK]

Thanks VinnY,
I have an engine error code. Cam Shaft Crank Shaft, bla bla.
Trying to do some homework before I dive in again...
I did use an aftermarket cam adjuster. Not sure if it is doing the right thing or not.
Cheers for your reply

[MIG]

Quick question,
Does the bronze link on the cam chain trigger the cam position sensor?

No, the bronze link is just for assisting in the installation of the chain; the position sensor reads a magnetic tone ring.

[CARBON SINK]

I am a bit stumped. I would like some direction here.
Thanks for your reply MIG it sure takes one thought out of the equation.

I have a very lumpy idle at low revs. Smoothing out at1500. Have tried advancing the cam shaft one tooth on the timing belt. This smoothed the idle out a bit however the fuel consumption was off the chart.

I was hopping when i got this engine back together the ecu would re program and sort itself out...
I am contemplating buying a VCDS cable (MOUNT auto) to do some diagnostics, my thoughts go to... Maybe a blocked fuel injector, The ECU is not re mapping the new Cam Chain, Valve grind. The Cam Adjuster I bolted on is a piece of s***.

These are to many possibilities for my Brain. I'm considering taking it to a guy in Hobart.

A mechanic down the road here where i live helped me with the engine fault codes "Heater thermostat Open circuit" "Engine Crank Cam Timing Error".

As you might guess by my tone. I'm running out of enthusiasm.

any help ideas appreciated.

[Passat my07]

Which engine is it? How did you set the cam timing up?

[CARBON SINK]

Thanks for showing an interest Passat.
The engine is a 2L FSI 110KW
K1 ?
I did use a Cam Shaft locking bracket.
I've returned the timing belt to top dead centre on the timing belt/crankshaft marks. I'm using a probe on the no. 1 piston. As the timing marks on the crank pulley/engine tin wear are a bit ambiguous. Although are looking much better with this setting.

I have thought about air leaks around the intake. The all look/sound pretty good. Tried a few hoses off and on with no charge. Have not used a can of quick start. Or tried fogging?
Standing back for a minute.
Did think of putting some fuel conditioner in the tank.
The engine does run suprisingly good. Plenty of power. Just way too rough at idle. And an engine fault light .. did go into slow down on the highway when I took it up to 5k overtaking, bit embarrassing...

[Passat my07]

So if you turn it clockwise to tdc number 1 does the cam locking tool go straight in?
You’re mention cam chain and cam belt. Which one is it?
Also is the pcv ok? It’ll cause idle issues. Does the idle change when you pull the dipstick out when it’s running?
Also have you cleared the codes after you’ve reset the cam timing?

[CARBON SINK]

Hi Passat,
Cheers again getting back to me.
Yep the cam looking tool drops straight in.
Chain on one end of the Cams. Belt on the exhaust cam on the other end.

Good. This PCV thingy there is a solenoid under the second cover to come off, it is getting rather hot. I did pull the hoses off this with the engine running. However f the valve is not opening , there could be something I'm not up to speed with.

Regarding the dipstick , revs change and engine starts bouncing around. Same with pulling the oil filler cap off.

The mechanic down the road reset all the codes. The engine light came back on the second time out the yard.
I'll try to work out how to test the pcv.
Cheers

[MIG]

I would be looking at the "Engine Crank Cam Timing Error" you mentioned. Does your mechanic have a scope? I would be looking to see if the cam and crank sensor signals look good.

Testing CAM-CRANK Sensor Relationship on a Picoscope - YouTube

[Passat my07]

Have you had the codes checked again to see which faults have returned?

[CARBON SINK]

Thanks Passat,
The Picoscope looks like it would be good for diagnosis. Do you know if a VCDS Cable gives similar information, with out the back pinning and piercing?

Had a dig under the hood today might be a vacuum leak somewhere I have overlooked.
Cheers for your encouragement

[Passat my07]

Is the picoscope just an oscilloscope? That would be handy for some things but it won’t give you all the fault codes etc that vcds will give. You’ll be able to read live data from the sensors with vcds. You can also code modules etc. It’ll be the best thing you can get for a vw but it won’t do other cars. It may not solve all your problems though because you still have to interpret the codes. A vacuum leak might give a code like lean fuel trim. Good luck with it.