Hey all, have a scenario with my new VVT’s. Thought id ask on here perhaps to shed some light. Had my VVT’s changed to a new set. But for some reason its chucking up a fault code. Now these are the new VVT’s with new part number compared to the old. We have had trial and error with this scenario as when we put the Old VVTs back on no fault, when the new ones are on fault comes up! Timing has been checked 4x and is spot on. No chain stretch as its a new chain and has only done 12K. Has anyone come across this with the New VVT’s at all? MJ.
I believe Darren at VW E went through this with you on the phone. However, idle the car and log Group 90 and 91 and let us know what you see. Group 1 should be logged also. Also new "VVTs" as in the phasers for a MK4 Golf 3.2 BFH? Part numbers 022109087E for the inlet and 022109088G on the exhaust? It needs to be those or from any EU3 engine such as the BDE or BHE to have the right adjustment range. Else those faults will pop up and this will be shown on VCDS on the channels I susggested. Trust me, I know a lot about this system, especially now
I think the best thing for you to do MJ, is to pop by the workshop and let me carry out a few tests and go from there!
Eddie, yeh its BFH, and from VW these are the new VVT’s as apposed to the part numbers you had suggested. New ones are 022109087J Inl. 022109088M Ex.
Gonna recheck the old VVT part num and cross ref as the numbers above that I had written are suppose to be the new shizzle. Mj
Mk5!! You avin a bubble aint you. Well both Cams have faults down to the VVT, awaiting call back from VW. Cross referencing all numbers. Mj
I wrote the thread below as a result of mapping work, long before I owned a car like that. It shows the range between EU4/5 VR cams (8P/1K chassis) and EU3, BHE,BDE,BFH. https://clubgti.com/forums/index.ph...or-mk4-and-mk5-cannot-be-interchanged.285220/ I am not 100% on phaser rings or referencing for the cam sensors on position 1 (G40) and postion 2 (G163) for the BDB/BUB but you can do that by Darren if the parts now fitted do not match up with your old parts. I have also seen the pistons from adjusters (N205 and N318) in the cam adjustment block seize, but you need to view VCDS to start going down that path.
In plain english, If i put the original VVTs back on no fault code at all. Was only changed due to Block 208&209 being 8 or -8 and the other at 4 or -4 as car was not producing proper power. Initially had 281 NA. Mj
The limit for both are +/- 8 So a range of 16. The cams can adapt for the correct reference once they are between that tolerance. The VVT fluted drums seem to be pretty robustly built. Also pretty expensive part to replace!
This is the exactly why I have 3 ecu's two different MAF's 2 sets of injectors Listening to people that haven't a clue I'm 99.9% sure if you fitted the old cam adjusters and they were timed right that would qure the problem
If you need the part numbers referenced both me and RJ have etka so you can go to VW with the right info can even give you a print out
I see that If it's not the adjuster it the timing as we have spoken about in the past that's a common problem so easy to get not quite right
As above the timing is spot on. If the old VVTs are on no fault. With the new ones fault is there. Cross over with new part numbers double checked again with VW and they are correct for the BFH engine. Problem is why is the Cam Sensor picking up faults? If timing was out the car would not run how it is nor will start adequatley. Maybe its a case for a technical enquiry to Germany from the master tech. Mj
Mushy, cheers mate already have my guys sort that out at Vw. Hence how I came across the part numbers initially. The part numbers Ive quoted above states on ekta its for 1J4 and 1J5. Mj
No problem I hope you get to the bottom of this I feel your pain having a similar problem with mine What's the problem with the old ones are they worn ? I know your ment to change then when doing chains but a lot of people don't due to the price Ps have always liked your car
Cheers man. I have yet double checked with VW. As Toyotec had written the original part number for the VVT’s, which have now switched over to the part numbers written yesterday. (Below). Original: 022109087 E 022109088 G Are now: 022109087 J 022109088 M The VVTs are both identically the same. MJ.
What you cannot see is the inside of the phaser MJ. The vanes inside have different thicknesses between the exhaust and the intake to give the range of adjustment. The actual phaser housing is the same between 24E and 32A. On the basis of what I do for a living, I suspect the revision to '087J' and '088M' may have have had an ECU update to ensure the cams were at the correct correlation to the crank and within diagnostic tolerance. Quite frankly I do not understand the logic for replacing the old ones in the first place, despite the engine "down on power" compared to other vehicles tested on the rollers you were on. Lots and lots of room to play on an ME7.1.1 ECU and camshaft tuning is one of them!
Ok. I just wana know why this scenario is occuring as cant get my head round it. Thank you for elaboration on this but right now its not the time to be back in the classroom. It has to be some sort of Update as the VVT are identical but not pairing up like a Bluetooth scenario. Where if the old ones are refitted no fault codes appear. The block 208/209 were showing signs of Chain weakness. The chains are new and have only done 10-12K if that. So that didnt make sense. And off course down on power, its highly unlikely that the chains would have stretched already. So the only other option would be change VVT’s to have it all running smoove. Nothing to do with Rollers mate. Knock and fuel values were all good at the time when we had saw the 208/209 measurements. The timing cant be out as when swapped over with old NO FAULT CODES. So its either something thats missed with the new VVTs or as you suggested above an update for the ECU from VW. Why were they superseded to new part numbers? Was there a glitch in the old VVT? The old part numbers were for 2.8/3.2, these new feckers are only listed for BFH R32. MJ
