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Have you tried putting a jump pack/trickle charger on the battery?

Most of the OEM belts are made by Contitech, but Dayco and FEBI are decent brands too Have a look on Autodoc

Does a GTi have 109? Location?

You already have the immobiliser response code... it's the ECU that's given that code above, not the immob? Positions are the same, so you might be right. Might have been changed before? @lupogtiboy, do you have a relay position diagram? I can't find one for the Gti.

Time for a bit of a shake up! I'm sure that this'll split opinions, but I like it

Superb! ❤️👍🏻

Hey all! Writing to you from our holiday destination, lovely Bude, North Cornwall on this fine morning Otis made it all the way from Kent to Bude yesterday, a staggering 277 miles! No issues whatsoever. My longest drive by far (I had previously only done 70 miles as my longest in one hit!) and honestly? Very comfortable! I ♡ my Lupo As you may've seen, I'm making good use of these roof bars by strapping some bodyboards onto them!

Can you smell any fuel at the exhaust? If not, could be fuel system related, like pump, filter, pressure regulator, that sort of thing. Not ECU. Not temp sensor. Not ignition or plugs. And like @lupogtiboy says, crank sensor? You'll get no or intermittant sparks if it's the crank sensor.

Have you put a scanner on it? My bet would be the crankshaft sensor, utter b@stard to change

because it is poorly maintained for now, ask your local forums for a guy who remaps ECU's very well, take your Lupo to him and ask to check if every reading he can notice is good.

@CLAYTONJONES What's been happening? Thread's cold

We hit 20k!!

That will do the job 👍 I believe You saved this Lupo. If you want to clean your interior for very cheap you can go to self service car wash and spray the pre-washer (not foam, but pre-washer) in a bucket, then take a big sponge and rub the interor with the pre-washer (no need to soak everything, just wet the sponge and rub everything, some parts will get soaked anyway), then vacuum everything out. The pre-washer is perfect for cheap interior cleaning, but, just to be safe, try something little before you do it to all interior.

I don't have one either, but neither in Autodata nor in ElsaWin (I consulted both the electrical diagram and the assembly diagram of the fuel tank) I couldn't find the fuel pump. Anyway, it needs to be clarified whether the spark plug light comes on or not when the ignition is turned on when it doesn't start. A diagnosis would be very useful.

I don't really know, because I have never had 1.4 TDI, but google shows me Lupo 1.4 TDI fuel pumps from tank. @mk2 You have this engine, can you tell?

It has glow plugs (the radiator you see under the car is a cooler, not a heater). They play a role in starting the engine easily at temperatures below 5° Celsius. If the engine is ok, it starts without glow plugs even below this temperature, but more difficult. Be careful with one aspect: the glow plug indicator light has other roles besides signaling the operation of the glow plugs. When you turn on the ignition, it must light up briefly even if the coolant temperature is high enough so that it is not necessary to use the spark plugs. If it does not light up briefly, it means that the ECU is not getting power (if you have a tester, you will notice that it cannot connect to the ECU) and implicitly the fuel pump will not work either. However, from my knowledge, the 1.4TDI does not have a fuel pump in the tank, so you do not hear much. But even if the glow plug indicator light does not light up, the starter should turn over, it has nothing to do with the ECU.

Isnt that buzz from fuel pump in tank? Seems like be your pump is goner, but you can test it very easy, when you cant start the car you need to give the pump a little tapping, for example tapp bottom of the fuel tank with stick or remove the cap under seat and lightly tap the top of fuel pump, that is often enough to make it work once again. The same works for starter motors, thats why bosch made a beautiful sticker: The problem is definitely not glow plugs, you can drive without them, especially no need for them at 35c.

If the glow plug light does not appear when the ignition is turned on (even for a very short time) then the problem is strictly electrical (the ECU is not being powered).

Hey everyone! First off, I apologise for not being as active as I have been previously. Truth is.. there's just less to do with Otis now! Got the wheels, got the springs, got the exhaust, and life with this setup has just been a dream, so haven't felt the need to do anything since! Until today.. well.. June 3rd actually. I hunted down a pair of genuine Vortex Lupo roof bars, extremely rare to find nowadays!! Here we are, just arrived and fitted today. I'm gonna drive up to Cornwall next week for holiday, and I'm gonna put some bodyboards on top to put these to good use

Good job, keep going! Next I recommend to find someone who can remap your ECU and remove EGR valve, 1.4 TDI is good engine.

The right side was also loose. Did the same trick with the third bolt. The plastic should i call them bolts just broke in two.

Nothing overly exciting has happened to the car as of late, done an evening session at Snetterton recently which was a huge success, the best the car has ever felt for sure. I’ve just fitted the latest version of the Sprogley Motorsport airbox, this time it’s 3D printed with Carbon infused material so the finish is just incredible. I also bought another set of wheels, I used to have a set of 15” OZ Ultraleggera’s and I always regretted selling them. Seeing them on my partners car made me want another set so I finally bought my first ever set of brand new wheels! They look amazing, wrapped in Nankang AR1’s ready for a Nürburgring trip on 23rd August for a week :)