Treb_Kavon

I actually found it in a Polo service manual i found here. But of course any additional insights are welcome.

Hello, I am trying to find information about what km interval the timing belt of a DKRF engine needs to be changed. This engine is fitted into my Seat Ibiza 2019 1.0 ecoTSI and i found some information that also the Octavia mk3 has this engine. If i am correct then this engine belongs to the ea211 family and i found one reference here in BRISKODA that the timing belt lasts 240 000km and after that inspection is needed every 30 000 km. Currently i have driven 107 000km with my Seat. Does anybody have some more info? BR

Hello, I have a skoda octavia 1u2 from 2004 which got into our posession a few years ago. I never really liked the clutch as it bites pretty much at the end of the pedal lift with a very small window (i often make it either rev up too much or i get it almost stalled). It has 240 000 km driven and i think that the clutch has never been replaced. Gears get shifted easily without gnashing or whatsoever so i guess the clutch isnt worn out fully yet. But then i started reading about clutches and realized it is hydraulic and that some posters here mentioned that they have remapped the clutch. What does this remapping means? I also feel that the pedal is very soft, but so is the brake pedal, still it breaks properly but have to push the pedal deep. Is that an indication of air in pipes? The brake fluid has been replaced a few years back by previous owner. Any insights?

Thanks @sirlancelotksa You have provided a lot of useful information that helped me in the diagnosis. Now that the oil has been changed along with the oil filter and the air intake pipe and other checks are performed such as vacuum leaks and coolant quality, it got time to address the lambda sensor itself. Seems like it was the lambda sensor that got faulty. It isnt clear whether there really was a wiring problem with it or was it contaminated by the oil that leaked into the exhaust manifold. The sensor was quite sooty. It looked like the one labeled as "POLLUTION FROM A RICH FUEL MIXTURE / POLLUTION FROM ENGINE OIL" from this website https://triscan.com/en/news/lambda-sensor-error-codes-are-often-misleading Anyway the problem is now resolved so thanks for your help!

Regarding the air intake pipe, for now it is fixed with a piece of hose. As tight as possible and sealed. The membrane in the pipe is possibly gone bad, not sure how to check its integrity but i was planning to buy a new air intake pipe. If the device attached to the connector pipe is indeed just a heater then i might go with the cheaper type without heater untill the issue is resolved. Tough i live up north so this might need to wait till better times... Alternator seems to be fine, battery voltage at 14.2V steady when idling

I had little time to focus a bit on the hissing sound. It definately is most prominent at the valve on top of the intake manifold https://www.lllparts.co.uk/product/06A198205A/repair-kit-for-valve-br-unit. This is in connection with the solenoid i assume. Can you elaborate more on this topic in terms of operation. I measured the voltage that goes into the solenoid with ignition on and engine off, it was 4.3V. The resistance between the pins of the solenoid was about 30 ohms. I read some people test it by connecting directly to 12V but since i measured 4.3V as input i did not dare to unleash it to 12V. There should be a ticking sound coming from it when the valve opens and closes. At what stage does this solenoid get activated?

Did this get resolved @BFQnightmares? I am experiencing on my skoda octavia 1u2 bfq similar lambda problems (P0130) and also the intake pipe (with that what Breezy_Pete described as a heater) has a leaking/broken connector pipe. So i am also thinking to get a replacement part. I think the part needed is 1J0129684CH https://www.lllparts.co.uk/product/1J0129684CH At least if i search online with that code i find images of the intake pipe with the heater element. I have not ordered anything from lllparts but i assume it can be purchased there? I am also curious if you got your problems solved...

Thank you @sirlancelotksa. I will carefully read this and try working my way through.

Hello, I have a Skoda Octavia 1U2 equipped with a 1.6 engine with code BFQ, from 2004 with troubles regarding lambda, oil consumption and incomplete self diagnosis. TIMELINE/BACKGROUND 2023 late autumn Troubles started this time when the engine light turned on for the first time. 2023 late autumn till end of year A period followed when the engine light turned off and on intermittently without altering anything. 2023 end of year We went to read the fault code at a local motor vehicle expert shop because the annual inspection was about to happen. The fault code referred to the upstream lambda (i cannot remember the fault code because at that time i did not own an OBD reader and i lost the notes i made back then). 2024 january So this lambda sensor got replaced by a new one and the inspection was passed. 2024 february to march But shortly after the engine light turned on again. And again a period followed when the engine light turned off and on intermittently without altering anything. 2024 march to october This was a period when the engine light was off. We made several long distance trips between 1500km - 3500km. Oil consumption during this time was acceptable but increasing and oil was refilled regularly. 2024 september till today The engine light turned on again and stayed on eversince. We did a few trips of 1500km. oil consumption was increased. I bought an OBD reader and the fault code was P0130 (O2 sensor circuit bank 1 sensor 1). OBSERVATIONS I went to ask a repairment expert about the costs but he said the problem can be anywhere so i might end up paying more than the car is worth. So i asked for some advice what to check for save money and here are some findings. OBD I/M readiness MIL status ON Misfire monitor OK Fuel system mon OK Comp component OK Catalyst mon OK Htd catalyst N/A Evap system mon INC Sec air system INC A/C refrig mon N/A Oxygen sens mon OK Oxygen sens htr OK EGR OK OBD live data DTC_CNT 1 FUELSYS1 OL FUELSYS2 N/A LOAD_PCT(%) 26.2 ECT(*C) 78 SHRTFT1(%) 0.0 LONGFT1(%) 9.4 RPM(/min) 686 VSS(km/h) 0 SPARKADV(*) 9 IAT(*c) 13 MAF(g/s) 2.28 TP(%) 2.0 AIR_STAT OFF O2S B1S12--BS2--- O2B1S2(V) 0.435 OBD EOBD MIL_DIST(KM) 3351 EQ_RATB1S1 0.993 O2B1S1(V) 1.469 Regarding idle, the specs say BFQ idles between 640-900 rpm. There are very slight fluctuations in the idling though... Lambda heater wire resistance 6 ohms Lambda connector harness pins 2 and 6 80 ohms Fuse 43 intact See image 1 Spark plugs changed in march 2022 (30 000km since) Air filter fairly OK? See image 2 MAF was pretty oily (cleaned now) See image 3 and 4 Tank cap sensor Sensor disconnected Power wire to ground 12.6V Signal wire to ground 0V Sensor connected Power wire to ground 11.8V Signal wire to ground 11.8V Does somebody know how this sensor is supposed to work and how to properly diagnose? I assume this is related to EVAP? See image 5 and 6 Hissing sound coming from somewhere at the intake manifold. I think related to the solenoid valve as the hissing is most prominent at the places related to this. Does somebody know how this supposed to work? I could only observe the hissing at idling bcs i was alone diagnosing. See image 7 Oil was spread at the connection pipe between oil filler and intake pipe (is this the crankshaft ventilation valve?). I disconnected the intake pipe to clean this part but at this stage this smaller connector pipe broke into pieces. I suspect it was already leaking/broken before i touched it hence the oil all over that specific spot. Inside the intake pipe there is some valve or membrane which was also very dirty. I cleaned it with break cleaner (not sure if it was a good idea). This part has also two electric wires attached. Is this a sensor or a valve? What is the function of this? How to test it? For now i put the cleaned intake pipe back and fixed the broken pipe part with piece of hose. See image 8 and 9 Exhaust manifold seem intact in my opinion but also there traces of oil was visible at the manifold. See image 10, 11 and 12. Oil and filter have been changed during these days of diagnosing. After each change i reset the fault code and did a drive cycle but the fault returns. Assuming that the lambda sensor is fine, my best guess is that something is altering the crankshaft pressure regulators and results in oil being pushed into the air intake and through the gaskets and exhaust where it then contaminates the lambda sensor. Someone also told me it can be the valve insulations that cause the spread of oil basically leading to the same result. But i am a noob and i would appreciate any advice in further diagnosis.

Thank you for this info!

Hello, Would somebody know the location of the PCV valve on my skoda octavia 1u2 from 2004 with bfq engine code? Is it hidden under the cover of image 1 or is it that part in image 2?

Sure thing. Although this problem we had before and changed the lambda 1 year ago. The engine light was then off till summer when it lit up again.

The sensors voltage reading remains over 0.9 volts even when the lambda is disconnected

I am not sure what readings should i get. S8me sources say lambda heater resistance should be somewhere between 10 and 20 ohms. And if not it could mean a short circuit. Maybe thatswhy the signal voltage is over 0.9 volts? That would mean that the lambda sensor needs to be changed. This would be an easier fix than ecu or ecu wiring issues...

Please see images added.