Oil pressure light flashing

Hello guys need some help just fitted speedo and the oil  light is flashing,  on standstill everything seems fine but when when driving the oil light flashes and a humming / buzzing noise comes from the dash, just need help what it could be my speedo meter stopped working to and that when the noise started and light came on all help appreciated thanks 

Worst scenario is that the oil light and buzzer are coming on to tell you that your oil pressure is low!  BUT can be electrical things mixing up and if it started to do this at the same time as the speedo' packed up I would be inclined to think there's a link.
It sounds stupid of me, but assume you have checked car for oil level and any leaks? Also is engine noise normal or any bad noises? If so don't drive without investigating.
My oil light used to come on, but a proper pressure check showed it not to be low oil pressure but an electrical fault. Do hope yours is the same! and that the engines fine.
Rubjonny is your best man to advise you as he's an Alien who knows all…Marcus.

I need to have a look On standstill car is fine you can rev it and all seems well, I drove it down the road and speedo was working fine didn't see no lights on dash then stopped at give way and drove off and speedo had stopped then oil light came on and a buzzing, stopped it Again started her up And all was good then drove and buzzing sound and oil light flashing, got home checked oil and it's fine I took the dash panel off and looked at speedo cable it was tightly on but the plastic clip that clips to speedo had come off but the cable was in quite tite I managed to get it off so will grease it a little and put it back and take for a short drive see what she does, problems after problems with her but hopefully get her sorted 

Clives started to do the same thing after not being used for a while, I'm thinking it might be one of the sensors on the engine on the way out again, but I can't remember whether it's the top one, on the side of the head, or the one on the filter housing. Doh

I haven't driven it properly in about 2-3 weeks, then had a problem where the fuel relay went so and speedo buggered, so fitted new speedo and new relay, mine is a 1982 1.6 so would it be same sensors as later 1.8 ?

The speedo is driven by a cable so no electrics involved, I recon it's just popped of the back of the instruments when getting it all back together, you may be able to see the back of the clocks from where the pedals are and be able to get your hand up in behind to reattach the speedo cable.
The oil buzzer and light only come on if the revs are above 2000rpm, the sensor is just above the oil filter and possible white in colour? Might be worth to change that 1st to see if any difference and if not it may be your wireing as looking at pictures from other threads who knows what's happened to your fuse box or fault on the instruments.
If still getting the problem then it's low oil pressure, easy job to change the oil pump, drain oil, drop sump, remove oil oil pump, prime and fit new pump, fit new sump gasket ( my be upgrade to a rubber gasket) fill with oil and hope it work.

Thanks Il have a look at the sensor and check out the wiring I have taken the speedo out again so hopefully have a look at it hope to get it sorted , so if I reved the car on standstill over 2000rpm if there is a issue will the light flash and buzzer sound, I will keep you guys posted on the progress thank you again guys for helping me through my troubled time lol this car is doing me head in lol 😁

Keep at it BAZ-GTI it will be worth it in the end.
One way you can check the speedo cable is working is drive the car a little with out the instruments in the car and you should see the square centre of the speedo cable rotate, if it does not spin around the there is a problem with the cable or the cog has come off the end of the cable in the gearbox.
Not sure about oil buzzer, when my oil pump was failing the buzzer would come on every now and then but only when driving the car, if I stopped the car and restarted it the buzzing would stop for a couple of days or sometimes a couple of weeks then buzz again, I fitted a new oil pump and it stopped buzzing.
A new oil pump may not solve your problem, mine had covered 200,000 miles and was 20 years old so that is why I changed mine but I did change the sensor 1st.

The easy way to check the Speedo Cable is still attached is made easier by Removing the Side vent.



With the Vent removed, and the tube out of the way wiggle your arm in the opening and feel the connection of the speed.



Your Speedo cable may either screw on, or CLIP.  The Clip ones will pop off is you look at the cable sideways in the engine compartment, or hit it by mistake.

If you have the 2 piece cable, One cable in to the O2 counter box, then one out to the speedo.  The o2 boxes are known to be flaky, (if you have a OXS light on the cluster) then you usually have this counter box, that you have to reset every 30K mile…

You can replace the 2 piece cable with a one pice out of a 90's Cabriolet, but you will have to leave the counter box installed to reset the light….

Thanks guys, thanks Mark for the positive comments, hopefully it be worth it, it's been ok since 2 years I had it now it's just giving problems again n again, hopefully it get sorted, will keep you guys up to date with progress lol 

BAZ-GTI said

Thanks guys, thanks Mark for the positive comments, hopefully it be worth it, it's been ok since 2 years I had it now it's just giving problems again n again, hopefully it get sorted, will keep you guys up to date with progress lol 

They're like people…………..
Sometimes they just get a bit old and cranky and need some good lovin'  

Lol your right about that Lol, just a bit of help the wire coming out of oil sensor is blue/black with this wire go to the fuse box and then to the dash as I see a pin with a blue/black wire thanks 

The oil pressure warning system is a real pain and in my opinion it's 99% certain that your problem is with that, If you check the oil pressure first though  you will know you are tackling this from the right direction.
As Mark says keep at it, if you ever think these cars are too old to run every day now just have a drive in a Mk4 or ask someone with a newer VW if they've had any big repair bills, you'll soon go back to the Mk1.

As much as I Love my Cabby,  The Austin's and MG's were much easier to diagnose, Maintain, and enjoy…

My Daughter was Raving about her PRius, the great Mileage….. I told her that my Midget, got the same on the interstate, and no computers at all.  Gee that was 60's Tech….go figure.

This is no help to BAZ whatsoever and I apoligise.
Brian, my first car was a 1961 Frogeye, I went with a friend to see a Triumph Herald he was interested in and noticed the Sprite behind the garage, all interest was lost in the Herald, I bought the Frogeye for £80 and a friend of mine lent me some of the money and we drove it home that evening, I was 18 and it was 1969. It turned out to have an 1100cc engine, the small main bearing version, 10CG wasn't it, but was I chuffed with it. If a car of that concept, points ignition, SU carbs, a heater you had to lift the bonnet and turn a tap to turn on, etc were available now I would buy one tomorrow.

Just out of interrst BAZ, have you fitted VDO gauges with a new dual sender unit? I fitted a dual sender to my 1.8GTI and I replaced the original sender in the oil filter housing and I had exactly the same problem as you. It was because the oil light part of the new sender had a different pressure to the original sender. I fitted it in place of the sender in the head in the end and that sorted it. I can't remeber which way round it is now but one of them is a lower pressure than the other and swapping the osition sorted it.
Hope you get it sorted soon. As Mark said earlier, don't give up. They are great fun to drive and quick enough to get the adrenaline going every now and then! I have plenty of challenges with mine and Mark usually helps me out as well and as Cedar says, newer cars cost a fortune as well. I spent over £2000 and repair bills on the wifes car last year and in the end I sold it because I couldn't trust it anymore. At least on a Golf you can repair it yourself and it's also a reasonably sound investment.
Good luck, I hope you get it sorted soon.

cedar said

Brian, my first car was a 1961 Frogeye, I went with a friend to see a Triumph Herald he was interested in and noticed the Sprite behind the garage,

My Brother has a 60 Bug-eye 948cc, as that is what they were called here.  I bought a 58 Bug-eye in about the same year for 50bucks US.  It was hot wired and ran….948CC engine, and I have the original Window Sticker, that showed the 50 dollar optional Heater….LOLOL… That car is in a BARN in Illinois under a tarp, and everything else is in Peach Baskets and Boxes wrapped in Grease and waxed paper… The entire wiring harness was removed, and my dad and I made a new one out of the old my brother has been storing that one for over 45 years….He still has his as well.

My second was my 67 MG Midget Wire Wheels.
My third 72 Rover 3500S….. I loved that car….as well.

Now back to our regularly scheduled thread…
 

Nothing has changed just the new fuel relay and speedo, it was ok but then the speedo stopped and that when the oil light came on I could be a lose connection I will have another go tommoro and pray for the best lol I think the best cars are ones you don't take care of had a old Vauxhall cavalier it pulled a vectra out of a muddy field it went places and it just kept going I even drove it with Garage cables and a kitchen unit bracket to shift up and down the automatic gears lol sold it as insurance was more than the Car and put the heart and soul in to the golf still love it to bits but Its pushing it lol 

BAZ-GTI said

Hello guys need some help just fitted speedo and the oil  light is flashing,  on standstill everything seems fine but when when driving the oil light flashes and a humming / buzzing noise comes from the dash, just need help what it could be my speedo meter stopped working to and that when the noise started and light came on all help appreciated thanks 

Guys first you changed the speedo set where previous it worked ,you may have installed a faulty unit ?
Remove edge connectors on the clocks clean contacts and try again
The system works with two switches one on head the other on oil filtering housing coded black and white
Both are different pressures setting and also switch opposite
So when engine running I thick one switch is closed the other open.
You cannot disconnect either because when you turn the ignition on the light won't flash at all,
One switch just puts the light to flash when engine running the other does same and puts on a buzzer over a certain rpm
My guess is the instrument panel is faulty or the connections are dirty
From memory regards
Andy

I have put bit of electrical tape under the connector of the dash to see if it was a lose connection as it didn't tight, I will have a look at the connection in the senders a give them a clean will keep you up to date hope it works