VW_chris

i use and have always just bought MANN filters, they have the non-return valve, easy to get hold off (5 minute wait in euro car parts) and cheap

im going to try a few things over the next week, i always get to the source of a problem, regardless of what it costs, aha.... ordered a primary stage for the coilpack, rather than just swapping it out for what i think are good coils, im putting in a known good (brand new) coil, when that turns up. im still on the look out for an ISV. im going to try replacing that first before i move onto the maf, as ive said, it doesnt make a noise on ignition, aparently its supposed to buzz? anyway, if i get the chance when i get in from work tommorow morning, ill do a bit more electrical testing. Im also going to try contact grease on the MAF, and have a go at closing the pins in the plug up a bit and see if that cures anything :bonk:

right, been out for the last hour working on it, gave it an oil change, wouldnt make a difference but i do it every 3 months, so its done. warmed it up, disconected the maf, it noticed it but didnt do anything, didnt stutter ect.... along with the ISV not making a noise when ignition is on, asuming its meant to, ill have to see if i can get a MAF and ISV asap..... whats best for a MAF assuming mines no good? used genuine parts or topran euro car parts crack?

did you recover the air directories inside of the airbox? they are covered in foam at the factory, which turns to dust over time, i pulled my dash out and just used duct tape to cover the plates up

http://the-corrado.net/showthread.php?91749-Not-your-average-VR6-quot-TAP-quot-**ITS-FIXED**

yeah i had a not starting issue about a year ago and replaced the dizzy then, funnily enough it didnt fix it.... ill try disconecting the MAF when its hot shortly, im about to go out and do an oil change on it before i go to work..... so ill check that, as for the ISV, im tempted to replace the part but would sooner buy an OK/used part than something that cheap off ebay, but i think its one to buy.... youd think it would just be happy. ive just bought cams for it.....

right then where to start.... The problem the car idles rough/hunts (different every time you start/kill the engine) from 650, 900, 1000, 1100. it runs rough, it feels like its holding back (not as powerful as usual) its occasionally difficult to start, 2/3 attempts and 5/10 times pulling away from lights, it seems like missfires in 1st and 2nd but isnt a missfire? if that makes sense, as in the engines holding back for whatever reason. (may be a seperate issue, but the fuel pump relay clicks constantly on ignition :scratch: ????) whats been done 92 12v very early vr6 (original engine, slight mods) had the car scanned today, knowing the crank sensor comes up every time you scan a car regardless if its at fault or not, it was disregarded. it threw theese codes. 00533 - idle speed regulation - adaptation not set. 00537 - lambda sensor - limit exceeded. that would suggest an air leak. but there isnt one, all hoses have been checked, and double checked whilst running with brake cleaner. the front engine knock sensor (just behind the oil cooler) was knackered. causing the above problem to get worse, replaced with gen part, further issues disapread, leaving the original issues. ive replaced the HT leads, coilpack (single point version), cleaned out the dizzy/rotor arm, new spark plugs, main engine harness conector is ok, no corrosion inside, ECU has been out twice, stripped it down, no signs of tracing or any water damage. i read on vortex, a guy had a similar issue with regards to the fuel pump relay clicking, upon removing the ECU whilst leaving it connected, thus isolating it from ground, the fuel pump relay stopped clicking, i tried this out, whilst measuring what voltage was passing from the ECU to ground which was 0.32v. (to me, that instantly sparked, internal short. now, the ECU is meant to be earthed, other wise it would be isolated from factory. so the issue must be elsewhere, but why stopping that 0.32v earthing stopped the fuel pump relay clicking, i dont know) Electric testing..... query on the ISV harness, for those who may know, what is the supply voltage meant to be to that unit? im currently getting 0.86v at the unit on idle. from what ive read, the unit doesn't receive higher voltages until higher rpms??? also the unit does not make a noise, no buzzing on ignition, is that right?? Any feedback is greatly appreciated, any possible ohm ranges for resistance testing one the 12v VR6 ISV unit would also be great. god i love these cars.....

As per title, after a pair of duplex cam sprockets (duel link timing chain) and bolts. Many thanks chris

Ahh you see, the leak was at the pump, you have a feed pipe from the pump to the block, where the pipe joins onto the pump is where the issue was dude

RIGHT, where to start, for the last week ive been spending 5+ hours on it around work, which killed me, i slept for 20 hours straight after coming off night shift. then spent the whole weekend under the bonnet. ITS FIXED, the infamous vr6 "TAP" has gone. ive just spent the last 3 hours in it driving just listening to how amazing it sounds. no tapping, no hesitation, no dirty smells other than raw V-Power anyway, what is was... i reported back a couple days ago with regards to the oil pump being a bit ropey and the feed to the cylinder head, having the bolts half backed out, which was causing a serious drop in oil pressure, why the light never came on, i dont know, it must have been just above the threshold at which it comes on. that combined with sorting the wiring harness to the lambda sensor must have fixed it :cheers: so for all those who have a tappy vr6, check your oil pumps! 6 bolts and inspect to fooook, i dont know what the reason was behind the bolts being backed out, they were sealed with locktite, so they wernt going anywhere (ive never been in the sump) but, that seems to be it, i think after all that time of having a poor feed, it just needed a good run to get the oil flowing in all the right places again! suggest this thread is made sticky!!!!!

totally didnt expect this thread to get the response it has! much appriciated :cheers: after today, having flushed the system, replaced the radiator and header tank, as they were both knackered. still no change. with regards to the sensors in the thermostat housing, i believe they are all working and correct, yellow 4 pin, blue and black. i have replaced them, with no avail, i dont know anyone who has vagcom cabable of reading my car up here near newcastle, its the (old 2 plug) i have an adapter for it, however its been years since i last had it done... its a seriously odd one, the gauge on the dash is correct, feeling the hoses after driving then pulling up, and it feels about right. there not hot hot as id somewhat expect them to be after driving. i mean, this is the thing, i dont know what SHOULD be right, its a very very early late spec corrado, engine no 602. i dont know if its happy running at 70 or not, i can only go off what i know it should be sitting at, and used to sit at, untill i changed the water pump. i know people put low temp stats in ect, the one in mine is an 80 degree stat. i know these lumps run hot, before i swapped the water pump it would be scolding in there, it idles champion as well. stumped :scratch:

yeah, when i initially checked, it was around that price, im not fussed, its ran with low oil pressure for at least 3 years... which carnt have done them any good, if it needs them, itl get them

right, everything works champion, i had a **** load of bother about 8-9 months ago with regards to the fans not cutting in ect, which i solved by disconnecting some wiring harness at the fuse box (traced it back with a multi meter).... anyway, having replaced an abomination of a water pump, i now have another issue, it runs too cold.... [ATTACH=CONFIG]82456[/ATTACH] sitting around, on idle, everything works champion, heats up to temp, keeps going a bit more and the fans kick in at the right time ect. when im driving though, its as if the cooling system is too good? it goes no higher than 70 on the clocks... which is no good as its barely off warm up map. any ideas? i have got everything to do a cooling system overhaul today/tommorow, which if anything comes to light, ill report back, i tested the origional thermostat, which was ok, replaced it anyway as it looked ropey as hell, problem still persists. ive bought another themostat, on the off chance euro sold me the wrong one.... from there, ill be replaceing the radiator, obv the thermostat, cooling system flush and fresh coolant.

UPDATE Replaced my oil pump yesterday, however, in doing so i believe i found the issue, 2 bolts on the feed pipe for the cylinder head, were partly backed out, allowing oil to drop straight back into the sump... having fixed this, the engine has quietened down A LOT. but the tapping is still there. i will get the the bottom of this, genuine hydraulic lifters next month...

is it in decent nic dude? mines got a dint/bad paint, been meaning to get it painted for ages just havnt got the time to let it sit in a body shop for 2 weeks.... ill take it if its good :cheers:

what about clocks? with it being early/late spec, the clocks should have the vacuum attachment at the back, if youve still got those ill take em

looking for as obove, better the conition the better really, after a bonnet, passenger side door and front bumper in the above, flash red. mine are all pretty ropey, just seeing if theres anything out there :thumbleft: chris.

ive used a combo off spray glue, and some sticky as hell waterproof black stuff, similar to that used on sound deadening stuff, just without the foil on it.

i think a bit of an update is in order! been quite a while since this was updated, in that time ill try and remember everything ive done to it.... since the rebuild last year (still going strong :thumbleft: ) i decided a dyno was needed, more to see if anything had came out of it she ran 205 BHP with 203 FTlb. torque, pretty damn impressed, 15+BHP up since the rebuild, happy days. got bored one day, id seen a few rados with the MK4 "joey mod" quite liked the idea, ive got a spare set of lights kicking about if i didnt like it and thought why not, well impressed with the results, painted with engine laquer of all things.... [ATTACH=CONFIG]82394[/ATTACH] looks wise, she hasnt changed other than that, under body though, different story.... back end rebuild with new discs, pads, bearings, bushes, calipers and brake lines, back axle even saw a lick of paint too :thumbleft: [ATTACH=CONFIG]82395[/ATTACH] wasnt as bad as the mk4 i had for changing the bushes.... didnt make them any easier going in though, ended up putting the back axle in the back of the scirocco and taking it to get fully pressed it, bit of a nightmare, but done and back on the car :thumbleft: [ATTACH=CONFIG]82396[/ATTACH] after the back axle rebuild, i moved onto quality stuff (which is my job at Nissan) changed the door pins, had a terrific knock from the passenger door, turned out to be the rotten door pin, NO CHANCE that was coming out, so out with the grinder, and from inside the rear quater, removed the captive nut, another job done :thumbleft: [ATTACH=CONFIG]82397[/ATTACH] next, was the turn of the cooling system, id had problems with over heating if it sat for long periods of time, id replaced the fan relay 3 times, countless sensors, thermostat ect trying to fix it, only thing left was the water pump.... thinking, nahhh... someone has got to have done it in the last 24 years, went out the window a bit.... [ATTACH=CONFIG]82398[/ATTACH] NOW ive got the opposite problem where it now doesnt heat up to 90, just chills around 70.... mapping wise, i dont know what these are like, will it still run on a cold start map at 70??? any answers appriciated :cheers: anyway, moving on from changing the water pump (among many other things that weekend inc a full service) we went to the MOTHERLAND! it had literally been a dream to drive over to germany, so, with the car being in pretty much spot on condition, mechanically anyway, i thought to balls with it, this trip was planned in less than 24 hours! got the ferry the next day and only stopping on the ferry, we hit belguim! [ATTACH=CONFIG]82399[/ATTACH] carrying on through to Aachen, and stopping there for 5 hours in the daytime for sleep, next stop, the RING. i can honestly say, driving accross europe was one of the best things ive done, it was so good, that when i got back after 4 days, i went again, 2 days later. apologies for the non topic related photos, but im sure you guys wont mind :thumbleft: this is on route to Adolf Hitlers holiday home, more recently noticeable because of "monuments men" which filmed the story of stolen nazi art behind found here in the closing days of the war. [ATTACH=CONFIG]82401[/ATTACH] [ATTACH=CONFIG]82409[/ATTACH] [ATTACH=CONFIG]82400[/ATTACH] this was on route to a pretty freaking awesome place, bet you cant guess..... [ATTACH=CONFIG]82402[/ATTACH] such an epic day, the quality of cars there, ferrari, lambo, ferrari, porsche, SLS, camaro, mustang, corrado..... managed to find some pics taken too! [ATTACH=CONFIG]82403[/ATTACH] [ATTACH=CONFIG]82404[/ATTACH] [ATTACH=CONFIG]82405[/ATTACH] [ATTACH=CONFIG]82410[/ATTACH] [ATTACH=CONFIG]82411[/ATTACH] Biggest thing i found myself backing off on the corners i usually crashed on, on forza... all good though, not a hitch of bother :cheers: after though, she was cooked, tyres were well and truely scorching, brakes cooked, engine oil steaming, she got a much deserved break after that :thumbleft: from the ring, went to a car museum in dusseldorf, which is definaly worth the visit if ever you pass :thumbleft: [ATTACH=CONFIG]82406[/ATTACH] [ATTACH=CONFIG]82407[/ATTACH] [ATTACH=CONFIG]82408[/ATTACH] [ATTACH=CONFIG]82412[/ATTACH] [ATTACH=CONFIG]82413[/ATTACH] [ATTACH=CONFIG]82414[/ATTACH] on from dusseldorf, being a pretty big ww1/ww2 enthusiast, there was only one place to go from there, Ypres. seeing the church that was once reduced to gravel, was quite a sight. [ATTACH=CONFIG]82415[/ATTACH] they hold a ceremony here EVERY day to remember those lost at 8pm. the streets are always packed. back from germany and belguim, having missed a few places i REALLY wanted to go, i went back.... i had the time off and thought balls to it, i can live with a tight couple of months. done EXACTLY the same thing again, none stop all the way to france, stopping just outside of normandy. i spent a long time here, one of the first few places i visited, normandy war graves. [ATTACH=CONFIG]82416[/ATTACH] [ATTACH=CONFIG]82417[/ATTACH] [ATTACH=CONFIG]82418[/ATTACH] from here, we headed off to Le mans. which seeing all the old 24 hour cars, was epic. [ATTACH=CONFIG]82419[/ATTACH] [ATTACH=CONFIG]82420[/ATTACH] [ATTACH=CONFIG]82421[/ATTACH] [ATTACH=CONFIG]82422[/ATTACH] [ATTACH=CONFIG]82423[/ATTACH] [ATTACH=CONFIG]82424[/ATTACH] off from Le man, we (me and my brother) headed to heiley, little town just south of Ypres, where my great great grand farther is buried. being the first members of our family to have visited (which i thinks quite sad) having 5 war planes fly over in formation shortly before finding his grave, was an experience. [ATTACH=CONFIG]82425[/ATTACH] [ATTACH=CONFIG]82426[/ATTACH] from heiley, stopping in Ypres again, because sadly i missed the "Last Post" ceremony when i was there the week before. seeing the menin gate, which as it happens, was "too small" for all of the soldiers names to be listed on, who have no known grave so they needed to build another monument. [ATTACH=CONFIG]82427[/ATTACH] [ATTACH=CONFIG]82428[/ATTACH] [ATTACH=CONFIG]82429[/ATTACH] I had planned on going back for remembrance day in november, which is mainly dependant on other people getting pass ports sorted out... which im expecting to fall though, shame really. but back to the corrado, WHICH i havnt mentioned, never faulted, so much as stuttered or caused me any bother at all, i had to top the coolant up (radiator leaks a little bit) but other than that, every tool i took, went un-used :thumbleft: doing over 3,000 miles in 2 weeks, and being used, quite a lot before that... shes back into needing repairs, so, after putting a full set of toyo proxies on her last month, im now waiting on a 6 branch stainless manifold, 2 engine mounts, a radiator, oil pump and header tank coming through the post, STAY TUNED FOR MORE :thumbleft:

UPDATE well, after spending a lot of money trying to fix this problem, its not 95% fixed. im 100% positive the new tappets i bought, were dud. i have played with oils, 10w 40 and 10w 60, currently running 10w 60, which it seems to like. having gone back to the original lifters (bear in mind, the new lifters were in the car appx. 5k, went to germany and back, and went round the nurburgring) with no improvements, if anything getting worse, i swapped them back for the original lifters and got a refund in the process. now im back with the original issue, tapping higher up in the rev range, ive bought an oil pump to replace in the coming week, my thinking being maybe its worn past its tolerance, but not yet enough to cause a serious issue, just starving the lifters a little.

really was, i have no idea how id didnt over heat, cant get my head round it, no coolant was circulating round the system, only reason i bought both pumps was the electric one had packed up a week before, sooooo glad i bothered to do it, bit of a chew on to change it as well haha

i need another trip down for bits dude (Y) ill give you a ring one day next week ;)

INA rings a bell, not sure on what type they were as i pulled them out the box and put them in haha, blue box if thats any use? basically, if after this weekend its still ticking after i put the old lifters back in, im just going to stump it and pay for the genuine ones, evidently i should have bought the 380 ones haha, ahhh well, live and learn i guess

well, bit of an update on this bad lad, changed both my water pumps today, done a service and checked out the oil pump. - both water pumps were shot, i knew the electric one was near enough gone, didnt know the condition of the belt driven one..... well, lets just say im glad i done it haha - oil seems to have made a slight improvement, not much, allthough the cooling is much improved, after a bit of a blast, the tap comes back. going to put this down to **** tappets, im going to pull the "new" ones out and take them back to euro, my old ones were tappy, but no where near as bad as the new ones, maybe the new oil will sort that out :thumbleft: can but try.... ill keep this updated as i spend hundreds trying to fix this issue haha, i will get to the bottom of this :thumbleft: at the end of the day, i shunned off paying £380 for genuine tappets, i payed 80 from euro.... starting to think this might be the problem, but if this turns out to be the case, ill pay the 380, next month haha but for now, ill leave you with some naughty water pump shots :thumbleft: [ATTACH=CONFIG]82001[/ATTACH]

for what it costs Jim, im half tempted to buy new exhaust gaskets/bolts/nuts, then itl completely rule that out, especially before i start digging deeper, its definatly temperature related, as it only does it when it warms up. read on another thread (http://the-corrado.net/showthread.php?59268-VR6-ticking-tapping) 10w 60 oil sorted another guys very similar issue, doing the oil screwdriver on the ear trick on the rocker cover and all seems silent in there :shrug: