G60 0 Posted June 23, 2003 dont worry about that earth to the bonnet.. most rip in half and no one is too concerned about it. fix it if you want but its not a big deal. mine's ripped. Quote Share this post Link to post Share on other sites
Henny 0 Posted June 23, 2003 Henny, just swapped the connections and it was like you said, off colour (black) wire running to sender and blue and black wire nearby. Not had her out a run yet though so I'll keep you posted on temps from now. Is the temp reading in the MFA like that of the MKII Golf GTi in that it only starts to register temps at about 50 deg? While I was in there I noticed 2 things: 1) there is a green and black wire not connected to anything coming out of the same part of the loom as the blue and black one. Should I be worried? 2) On the right hand side (as you are looking into the engine bay) there is a flat and wide piece of cable going from the bonnet hinge to the engine bay. I assume this is an earth for the bonnet. Problem is that is has either been cut or has worn through to the point where it no longer serves it's purpose. If it is indeed an earth, I am worried!!! Thanks for your help and hopefully this will sort my problem. If not, it's back to the drawing board. Yay! I got something right! :lol: 8) The MFA is indeed like the GTI in that it starts reading at 50deg and just displays --- until then. 8) 2) Don't worry about the earth strap to the bonnet, I replaced mine when I noticed it was broken and the stealer I got the part from thought I was mad spending £6 on it 'cos "we normally just remove 'em when they've broken..." :shock: 1) Green + black trace?!? That'd be one of your oil pressure sensor wires then!!! :roll: Could be you just found your problem! Mine's connected to the FRONT sensor on the top of the oil filter mounting... Check to see that you've got a wire connected to both of these 2 sensors (front: green/black, rear: yellow on my '92 G60) There's also a blue with white stripe wire that's just tied back on mine and not connected to anything... I seem to remember this is the same on a few I've looked at... :? I'd bet that the connector off the top of the front pressure sender has snapped off and the wire is just floating around in the engine bay, occasionally touching earth and setting off the warning! :? If you find that the green/black wire is just hanging loose with a bare end, start your car normally, then touch the wire to the block, or any other earth, and I'll bet your warning light and beeping thingy starts up! If so, replace the sender and all's fab and groovy again! 8) :lol: Hope this solves things! Henny.... Quote Share this post Link to post Share on other sites
biggrim 0 Posted June 23, 2003 MFA still reads --- so I'll have another look tomorrow when I get home from work. Cheers for the advice Henny, u a mechanic or auto electrician or you had these proobs yourself in the past? The green wire has a vw female spade connector on it so I don't think it would cause the fault. I'll have a look tomorrow and take a note of what I have connected and where and let you know. thanks again Quote Share this post Link to post Share on other sites
Henny 0 Posted June 24, 2003 MFA still reads --- so I'll have another look tomorrow when I get home from work. Cheers for the advice Henny, u a mechanic or auto electrician or you had these proobs yourself in the past? The green wire has a vw female spade connector on it so I don't think it would cause the fault. I'll have a look tomorrow and take a note of what I have connected and where and let you know. thanks again :lol: I'm an Ex-mechanic (at a VW Beetle/Golf specialist!), Electronic Engineering degree graduate, who's now a Chief Broadcast Engineer with a history of buying knackered VWs and doing silly things to them for the last 11 years! :lol: I guess it shows sometimes! :? :roll: :lol: The green/black wire with female spade does sound just like the oil pressure switch wire... Check it's not been damaged further back and isn't cable tied to anything metal/hot that it could be shorting out on... :? *EDIT* Oooh, And now I'm a regular! :lol: Quote Share this post Link to post Share on other sites
biggrim 0 Posted June 24, 2003 Henny, had a look tonight at what i'd done last night and I'm a complete chopper!!!! I put the blue and WHITE plug onto the sender! Whats wrong with this picture? I can see no blue/black wire. Am I even looking at the right area of the block? I'm a dumbass Quote Share this post Link to post Share on other sites
Henny 0 Posted June 24, 2003 Henny, had a look tonight at what i'd done last night and I'm a complete chopper!!!! I put the blue and WHITE plug onto the sender! There's a word for people like you! :lol: It's easily done if your engine bay is anything like as mucky as mine is at the moment... :shock: I think I'll give it a damn good clean this week while I change both of the plastic coolant pipe flanges that have started to leak, and the front engine mount that's soooooo soggy it's made my new SS exhaust start to blow... :shock: :roll: Does it work now? and if it does, what kind of temps are you reading? Quote Share this post Link to post Share on other sites
biggrim 0 Posted June 24, 2003 the black wire on the left (top pic) goes the the temp gauge that has been added i think. Yellow one is the only original bit left. The bit at the back is where i disconnnected the other wire from the vdo. You can just see the green wire in the second pic. any ideas where it goes? End is slightly corroded and plastic looks kinda burnt at one side. I'm a bit worried about that blue crusty looking stuff on the right of the block. Is that coolant? I know I'm being a pain in the ass but your help is greatly appreciated. Quote Share this post Link to post Share on other sites
Henny 0 Posted June 24, 2003 Congratulations! It's an aftermarket pressure sender! :roll: :lol: That's the BIG sender at the front of the filter mount. This could well be the cause of ALL your hassles... Time to go to VAG and buy a standard one so you can put the car back to standard to make sure you know what's happening... :? 8) The green wire with the burnt end is probably why your light keeps coming on and beeping... If it touches anything earthed it'll think that you've run out of oil pressure and set off the warning! :? Two can play at the digital camera lark... :lol: Here's a couple of photos of my G60 engine so that you can see what should be connected where... Oh, and one so you can see what a coolant leak REALLY looks like! :shock: :roll: Don't worry about being a pain in the ass... If I thought that I wouldn't help! :D :wink: Quote Share this post Link to post Share on other sites
biggrim 0 Posted June 24, 2003 I have this bit plugged in where it should be. Quote Share this post Link to post Share on other sites
biggrim 0 Posted June 24, 2003 it's the other bit that is the problem, i can see that now. Yellow wire is in the wrong place because of the aftermarket sender, thus making the green wire redundant due to the aftermarket vdo gauge having crazy wiring. So, if I order a new (standard) pressure sender and put it on (will it be easy to do?) and connect it all up like yours, I should get a reading on the temp gauge in the MFA? My mate a the local stealer is pricing me one up tomorrow as he will get it at cost 8) . Would I be as well removing the old connectors and crimping on new non-corroded ones before I reconnect everything? I hope this is something I can do myself without loosing oil/coolant etc and not taking me a few hours. Thanks for your help Henny, I'd be stuck without it. Let me know your thoughts on this post and if it is easy to do I'll get it done myself. :D :D :D I might still have some questions so be prepared to get pestered some more! :lol: :lol: Thanks again Quote Share this post Link to post Share on other sites
Henny 0 Posted June 24, 2003 Hiya! The senders just screw in like a bolt... As long as your engine's not running, you won't loose much oil, (maybe a few drops) 'cos it won't be under pressure and can't run out upwards! :lol: I'd cost up changing both senders, but if that's too expensive, try to get the front sender and connect the wiring the same as mine... With any luck, it should all start working properly again and, with a bit more luck, you shouldn't have any problems with either temp, or pressure warnings from then on... :? :D The only thing to be aware of when fitting or removing these senders is that they are made of brass and so are very soft... DON'T over tighten them else you'll snap 'em off and leave yourself in a VERY sticky situation! (Voice of experiance here from snapping one off in a 25year old beetle... :roll:) Changing the connectors is rarely a bad idea as long as you get good connections on 'em and make sure that the terminals you use are insulated properly... :) Once again... Good luck! 8) Quote Share this post Link to post Share on other sites
biggrim 0 Posted June 25, 2003 Do you mean both pressure senders or a pressure sender and the trmp sender? Probably a silly question (again) but just so I get the right bits. Would it be worthwhile replacing all of the senders mentioned above? I'll hopefully get it sorted by the weekend, thanks Quote Share this post Link to post Share on other sites
Henny 0 Posted June 25, 2003 Hi Again! I did mean both pressure senders and if the MFA is now working, leave the temp sender, if it's not, yeah, replace all 3... It won't cost you a fortune and you'll have the peace of mind that they'll probably never cause you any problems again! :? :D Can't hurt anything but your wallet can it?!? :lol: Quote Share this post Link to post Share on other sites
biggrim 0 Posted June 25, 2003 Cool. Thanks. :D Just going to find out how much the bits will cost me. Quote Share this post Link to post Share on other sites
spoier 0 Posted July 1, 2003 Thanks guys, this has been a very informative thread, as I'm having the same problems. I have to say this forum is so much better than the "other" board!! I thought the forward sensor on the oil filter housing was the oil temp, but now I know better... there's nothing connected to the front oil pressure sensor! Didn't know where the oil temp sensor was before, it reads max 320F all the time, I will check that at lunchtime :) cheers!! :beer: Skye Quote Share this post Link to post Share on other sites
spoier 0 Posted July 1, 2003 Mostly questions for Henny Well just went for a little drive to get the smog check (passed!!!! amazing!!!) and the warning light was screaming bloody murder so I had to pull over and check Pulled off the yellow wire on the back sensor (high pressure or low pressure sensor?) and it continued to beep. Are the sensors NO or NC? ie when 1.8 bar is reached should the sensor open a path to ground, or should it close it. Also the warning light was blinking, does this indicate something as opposed to if it was just solid on. Last question... does the yellow sensor wire and the green/black sensor wire come out of the harness at the same spot? I couldn't find the green/black (the spade conn is broken off the front pressure sensor) and I may need to dig for it. If it doesn't come out with the yellow wire what harness does it come out of? Thanks muchly... Skye Quote Share this post Link to post Share on other sites
spoier 0 Posted July 2, 2003 Hey are you sure the two sensors on top of the filter head are both pressure sensors? I have some conflicting information that says the front sensor on the filter head is the oil temp sensor, and the one on the cyl head is the other (low, .25 bar) oil pressure sensor. This would fit with the problems I'm seeing, as the only sensor of the three that is disconnected is the front sensor on the head, and the MFA oil temp reads max all the time. The sensor on the side of the head is hanging on by one strand - could explain my bleeping problems, as well. I think I found the green/black sensor wire which is supposed to go to the front sensor, but there is no spade connector on the front sensor :( Actually there are a whole bunch of wires I found that are super close to breaking, so I'm going to be doing a bunch of rewiring this weekend for sure.......... Skye Quote Share this post Link to post Share on other sites
spoier 0 Posted July 2, 2003 If anyone cares......... Looks like the forward sensor is for oil temp Quote Share this post Link to post Share on other sites
Henny 0 Posted July 4, 2003 Hey are you sure the two sensors on top of the filter head are both pressure sensors? :oops: Well after destroying the sensor on the side of the head on my G60 last week just before I went off on holiday (hence no replys from me for the last week! 8) ) I can safely say I was wrong before... Sensor on side of head = pressure sensor (which go fragile with age! :roll: ) Sensor at front near block = Pressure sensor Sensor at front near rad = temp sensor The wiring pics I put up should be correct though 'cos my C has just done the best part of 1000 Miles this week at 32.MPG, 54mph ave with no problems at all! I've never managed to get her over 27mpg before! :lol: Oh, and the pressure sensor on the side of the head is the same as the one on the KR 1.8 16V engine closest to the block on the oil filter head! Glad I've got 2 16V engines knocking about! :roll: :lol: Quote Share this post Link to post Share on other sites
biggrim 0 Posted July 6, 2003 Hope you had a good Holiday Henny 8) Just as well my local stealer's parts department are as useful as a chocolate teapot and have not got the bits in yet or I'd be getting all sorts of crazy readings with senders in the wrong places :lol: Gonna give them a kick in the ar$£ and get the bits asap. Thanks again H and thankyou spoier for spotting some human error :? Quote Share this post Link to post Share on other sites
biggrim 0 Posted July 31, 2003 Just ordered the two pressure senders and the oil temp sender from the stealer afer being asked what colour they were!!! Cost me £40.43 inc. VAT but my mate should be able to get them for less with his staff discount. Is swapping these over going to be easy or am I giong to have to pay someone to do it? Looks like a piece o' pi$$ but the front oil temp sensor looks like it might be a bit tricky. Am I going to loose much/any oil when doing this and is there anything I should look out for and not do? Cheers in advance guys :D Quote Share this post Link to post Share on other sites
Henny 0 Posted July 31, 2003 Looks like a piece o' pi$$ Yup, have a rag handy and change the senders a couple of hours after the engine's been run and you'll loose less than a few millilitres of oil... Unscrew the old sender and shove a rag into the hole quick, get the new one ready, pull rag out and insert new sender.... Job done... repeat 2 more times and you're laughing... 8) I had a great holiday, the car ran brilliantly all the way to Cornwall and back to Cheshire, nearly 1000 miles in 7 days... and then it blew up the next week going to work... :roll: John (16VG60) is sorting a head for me so that I can sort the head gasket that's gone skywards and stop me from having to drive this Fiat Punto (ugh! :? ) hire car I'm stuck with... :roll: Quote Share this post Link to post Share on other sites
biggrim 0 Posted August 1, 2003 Help!!!!!!!!!!!! Just picked up the parts I ordered and only one of them looks right. Can someone with ETKA please tell me where these bits are supposed to go? 028 919 081 D - Oil pressure switch (I think it goes on the right of the block) 068 919 081 - Switch (Alledgedly this goes just infront of the block on the oil filter housing - looks completly too big) 251 919 501 D - Sender (This is supposed to go infront of the one mentioned above) Not even the same thing) Arrrrgghhhhh!!!!!!!!! Wanted to get this sorted today so if someone can tell me where these parts go or even tell me the right parts to order I would be forever grateful. You will know what bits I mean when you look back a few posts. Thanks in advance Quote Share this post Link to post Share on other sites
biggrim 0 Posted August 1, 2003 "Special order parts can't be returned sir" :mad: :mad: :mad: :mad: Bastids I tell thee! Fitted the "wrong" part since I had it anyway and on removal of the old one saw that it was corroded. Every cloud has..... not fitted the other bits yet because thanks to a bit of jiggery pokery I managed to get a temp reading in the MFA :shock: :D :lol: :lol: :lol: Disconnected the oil temp gauge and the pressure gauge so just left with voltage and boost and got a temp reading between 88-102 on the way back from the stealer. Does this sound about right? What gauges should I keep then? Defo the boost gauge but to choose 1 more from the remaining 3 is tough. Well, not the temp gauge cause I wanna see how things go with the MFA so it's between the battery voltage and engine pressure. Advice please guys. 8) Quote Share this post Link to post Share on other sites
Henny 0 Posted August 2, 2003 OK, you should have 2 senders that look very similar, these are the larger ones that are your oil pressure switches. The low oil pressure (0.4bar if I remember correctly) goes on the line to the charger on the side of the head. The other one (2.1bar IIRC) goes on the oil filter head closest to the block. The third sender should be a small one that looks nothing like the other two. This is your oil temp sender and normally goes in the front hole on the filter head. I'll have a look at the part numbers on mine tomorrow, seeing as how the head off my C is on my parent's garage floor :shock: and all of the senders are accessible so I can get the numbers off them for you... Keep watching this space.... 8) Quote Share this post Link to post Share on other sites
