Brainwaves Posted April 13, 2019 Report Share Posted April 13, 2019 Hi guys, New to this forum but owned a Lupo GTI for a while now. I’ve had an EML light on for a while now and I just can’t figure out what the cause is. The light first came on last year and since then the car has had an engine replacement with a reconditioned engine but still the fault code persists. Ive replace the camshaft timing sensor and already tried disconnecting the breather heater (aparantly this can cause this fault) my fuse 30 was blow but I replaced it disconnected the breather heater and the light came back but fuse 30 is fine. i could really do with some advice here as it’s driving me mad. Fault codes I currently have are 17748- camshaft position sensor/engine speed sensor; incorrect correlation 16394- camshaft timing control, bank 1; malfunction 17911- load signal from alternator terminal DF; implausible signal 16522- O2 sensor circuit high voltage (bank 1 sensor 2) 16514- O2 sensor circuit malfunction (bank1 sensor 1) 17759- camshaft position sensor, bank 1 implausible signal on startup Quote Link to comment Share on other sites More sharing options...
mk2 Posted April 13, 2019 Report Share Posted April 13, 2019 Firstly welcome to club lupo more than one fault by the sounds of it... first guess is cambelt jumped a tooth. vacuum leak somewhere. not sure about 17911 just yet. Odd. plug in the o2 sensor. Or replace it. Quote Link to comment Share on other sites More sharing options...
Sausage Posted April 13, 2019 Report Share Posted April 13, 2019 Deffo check cam timing, also oil pressure for the VVT bits, the rest is probably wiring and sensors. Quote Link to comment Share on other sites More sharing options...
Brainwaves Posted April 13, 2019 Author Report Share Posted April 13, 2019 4 hours ago, mk2 said: Firstly welcome to club lupo more than one fault by the sounds of it... first guess is cambelt jumped a tooth. vacuum leak somewhere. not sure about 17911 just yet. Odd. plug in the o2 sensor. Or replace it. Thanks dude. The O2 sensor faults are probably unrelated and I beleive I’ve sorted the alternator issue, some dodgy bodged wiring.The issue was present before the engine change and upon looking the timing doesn’t appear to be out. im kind of stumped at this point and worried I’m going to have to go to some sort of specialist and spend a fortune to fix it 🤦♂️ Quote Link to comment Share on other sites More sharing options...
Brainwaves Posted April 13, 2019 Author Report Share Posted April 13, 2019 3 hours ago, Sausage said: Deffo check cam timing, also oil pressure for the VVT bits, the rest is probably wiring and sensors. Doesn’t appear to be out and I haven’t checked oil pressure. Wiring from the sensor plugs to the plugs mounted at the side of the engine seem ok and I’ve replaced the camshaft sensor but can’t seem to find anywhere to buy the camshaft actuator 🤔 Quote Link to comment Share on other sites More sharing options...
mk2 Posted April 14, 2019 Report Share Posted April 14, 2019 What are you using for the timing reference marks? Is the VVT at zero/depressurised /off when you check the timing? Quote Link to comment Share on other sites More sharing options...
Brainwaves Posted April 14, 2019 Author Report Share Posted April 14, 2019 1 hour ago, mk2 said: What are you using for the timing reference marks? Is the VVT at zero/depressurised /off when you check the timing? The new engine was already marked so my mechanic lined it up to how it was marked and I wouldn’t know how to check those things if I’m honest. I’m handy enough but this sort of thing is beyond me Quote Link to comment Share on other sites More sharing options...
LR5V Posted April 14, 2019 Report Share Posted April 14, 2019 Welcome Just checking - These fault codes, have they been cleared and keep coming back? If you have already found bodged wiring there may well be more, trace the engine loom from the cam sensor to see if there has been any additional interference. Quote Link to comment Share on other sites More sharing options...
Sausage Posted April 14, 2019 Report Share Posted April 14, 2019 Check for blown fuse 30. Quote Link to comment Share on other sites More sharing options...
Brainwaves Posted April 14, 2019 Author Report Share Posted April 14, 2019 2 hours ago, LR5V said: Welcome Just checking - These fault codes, have they been cleared and keep coming back? If you have already found bodged wiring there may well be more, trace the engine loom from the cam sensor to see if there has been any additional interference. Thanks, Yes, I’ll clear them and they will stay off for about an hour, they usually come back upon startup. i have traced wiring about with a glow pen but I’ve just borrowed a multimeter to try instead Quote Link to comment Share on other sites More sharing options...
Brainwaves Posted April 14, 2019 Author Report Share Posted April 14, 2019 2 hours ago, Sausage said: Check for blown fuse 30. Fuse 30 was blown when I checked it a couple weeks ago, I replaced it and unplugged the breather heater. Fault code have been cleared and come back several times since but fuse 30 hasn’t blown. Quote Link to comment Share on other sites More sharing options...
LR5V Posted April 14, 2019 Report Share Posted April 14, 2019 3 minutes ago, Brainwaves said: i have traced wiring about with a glow pen but I’ve just borrowed a multimeter to try instead Ideally you need to check continuity between sensor and ECU - have you got a wiring diagram to identify the pin at the ECU? Quote Link to comment Share on other sites More sharing options...
LR5V Posted April 14, 2019 Report Share Posted April 14, 2019 6n2arcecu.zip Quote Link to comment Share on other sites More sharing options...
Brainwaves Posted April 14, 2019 Author Report Share Posted April 14, 2019 40 minutes ago, LR5V said: Ideally you need to check continuity between sensor and ECU - have you got a wiring diagram to identify the pin at the ECU? I haven’t but I see you’ve attached one, thank you buddy. Quote Link to comment Share on other sites More sharing options...
Brainwaves Posted April 14, 2019 Author Report Share Posted April 14, 2019 32 minutes ago, LR5V said: 6n2arcecu.zip Link doesn’t work 😓 Quote Link to comment Share on other sites More sharing options...
edwrai Posted January 26, 2020 Report Share Posted January 26, 2020 Did you ever find out what this was? I have the same 2 faults, however it looks like these sensors are fed by 5v and not via any fuse? is it a cambelt being out? Quote Link to comment Share on other sites More sharing options...
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