Jonny5

Ok will do, thanks for that Alex.. cheers Jon..

Out for a blast last night and anything over about 0.9 bar of boost, a misfire developed from 4.5Krpm onwards.. I too have read the FAQ (thanx Alex) and have concluded it may well be the spark plugs to blame. I've just been out and bought a set of NGK BKR7E - 11 for the cheap sum of £11 squids... Gonna fit them at work today, so I'll let you know if it's cured my misfire.. If not I might be on coil pack duty lol.. cheers Jon

Sorry to hear this Gill, what an A Hole. Get the B**tard to cough up the cash to put it right!!! Some people just have no respect.

Well no nearer to getting to the bottom of this problem.. Checked all vsv's seem to be functioning correctly. I've performed a leak test from the air filter and from the inlet to the intercooler and there are no leaks. The only slight leak I found was the EGR seem to be passing, so I've now removed the lot. Relocated the boost controller solenoid valve close to the wastegate cutting down on about 500mm of pipe work lol.. I'm still running in TTC mode so does this effectively rule out the control for sequential anyway?? I've installed a mechanical boost gauge and shes running 1 bar dead on.. Tonight I took the pipe of the wastegate and pressurised it, seemed to be working so far as the rod moving in and out. Went for a drive with the pipe still disconnected from the wastegate and still I only get 1 bar. (should have gone of the scale really) So my thoughts are now, theres either something gone wrong with the #2 turbo internally, the actual wastegate flap is cracked, or slightly open permantly, or perhaps a crack on the exhaust housing(s) although the latter I would presume would be audible.. It's like a definate controlled leak somewhere... Theres no whine, smoke or anything else obvious. Can anyone else throw some ideas at me or shall I start saving for the 'big old single' route...lol:eyebrows: thanx in advance gents Jon.

I will also double check all the vsv's are working correctly.. cheers Tom:eyebrows:

Yep, is a strange one... I think in the morning I'll try a leak test, by blocking the intercooler hose to the throttle body and pressurising from the intercooler input side and make sure there are no leaks there..

Tried the car in TTC mode, and I get the same boost pressures. High setting of the EVC iV at 1.4 bar I get 1.1 bar same when in sequential.. Incidently the power delivery in TTC reminds me of my 300zx, feels very similar indeed. Can't believe the difference in exhaust note very boomy..lol.. So does this mean there must be some sort of leak somewhere having eliminated the vsv's in TTC mode? cheers Jon

Maybe worth a try M8, I'm pretty confident it ain't leaking now although really it did'nt make much difference when it was..lol.. Maybe worth swapping just to eliminate it though.. Looks like trying the TTC mod may shed some light on it..

thanks for the link Paul, looks like a full no vsv and actuator test session coming up lol..

hiya m8, yeah sorry I werent here i popped down top field (Gloucester to see my folks). Managed to pop in to thor lol.. Pete says the boost controller is OK and with it off it was a steady 0.7 bar. I see what you mean though I'm not sure if the wastegate would open to what the spring rate is?? He checked the plumbing and all is well. He reset the boost controller twice and no matter what you set it at 2.5 bar lol..it still won't go above 1.1bar:rolleyes:

On a plus note though the car is performing alot better since the fueling has been sorted out. It made 360RWHP which at 1.1 bar is not too shabby lol:taped:

Well we presumed it looked like it was due to the first cat still being in place, therefore not allowing the gases to escape quick enough. But when I got back I split the exhaust to find the cat had indeed been gutted lol.. I think when the pipe to the wastegate was disconnected it was knida head scratchin time. Yeah could be I guess, I'm going to get a decat pipe made up anyway.. thanks Guys, any other suggestions..

Hi firstly I have a UK TT6. Had a dyno session on Saturday at THOR which highlighted a couple of problems. Firstly the car was running slighty rich, which was almost certainly down to the settings on the VPC that is currently fitted. This has now been reset together with an SAFC 2 to provide finer tuning of the AFR. The other problem is the HKS EVC 4 that is fitted is currently set at 1bar low setting and 1.4bar high setting. The engine has been uprated to be able to cope with this boost pressure in the way of HKS forged pistons, camshafts, stage 2 turbos etc.. Now set on the high setting 1.4 bar, Pete ran the car up to find the boost builds quite nicely, 2# turbo starts to spool around 3700 rpm, building up to around 1.1 bar at 4600rpm but then starts to tail off over 5krpm down to about 0.9 bar at the redline. There are no obvious leaks on any pipework, we thought that the first cat was still in place, but it turns out it has been gutted to which I am going to get a proper decat pipe made. Pete tried it with the waste gate pipe disconnected, which should in theory boosted off the scale but there was no increase at all just stayed at 1.1 bar.. As far as I know there are no restrictions in the exhaust it has a second decat pipe on sraight back to a drager. So if anyone could give me any ideas on where to look next I would very much appreciate any help:sos: cheers Jon..

sorted cheers M8:thanku:

cheers Leett... so just to confirm lol the yellow wire from the VPC that goes to the ECU will go to the input (white wire) on the SAFC, then (yellow wire) from SAFC back to ECU. fingers crossed..

I'm going to wire up an apexi SAFC 2 as an addition to the HKS VPC already fitted, mainly to gain better control of the fueling. Do I use the signal from the VPC that would normally feed the HKS GCC unit? Or do I break the map sensor signal going to the VPC and redirect this to the SAFC then back to the VPC? Can anyone help..

Still nothing.. May as well refund me too Slow Dog:giveup:

Heres a hoping...

You have a PM cheers Jon

Anyone have a good one available... I want to replace mine in an attempt to cure my foggy noises coming from the intake at idle. Located on top of turbo no.2 I'm led to believe. cheers Jon.

Really need the drivers side sill trim. It's the trim that goes over the edge of the carpet to meet the plastic trim on top of the sill extending down to drivers kick panel.. hope this makes sense.. cheers Jon

You have another PM regarding bits I paid for still not received 'em. Please let me know what's happening...

Hi, (beware newby owner lol:drown: ) I've noticed on my Uk soup that the pipes going to the EGR VSV are just linked together. I presume there was or is a problem with the system somewhere. Now i've done a search and the general opinion i've read is to ditch the system, which I think I will do. If so do I leave the vacuum pipes linked together or do I simply blank the ends off...Thanx in advance cheers Jon..

I'll pop round tomorrow after me shoot... Bearing all done, me boss let me pull car into the workshop yesterday lunch time then me and two hairy ass fitters set about it and between us we pi**ed it. Only took 3 hrs start to finish..no more play now though.. cheers Jon

jesus Paul, thats a bit bit to close to home innit M8. I think one sight of your dog and if they have any sense at all (unlikely) they'ed be outta there like a shot.. I'll pop round today and see you... Makes me wanna get rid of me zed asap so I can get me soup in my garage, at least I can get it onto the driveway now:rlol: with the aid of some carefully placed concrete... CCTV well worth it I think... cheers Jon..