Clive-D

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About Clive-D

  • Rank
    Member

Profile Information

  • First Name
    Clive
  • Gender
    Male
  • Lexus Model
    RX400h
  • Year of Lexus
    2008
  • UK/Ireland Location
    Surrey
  • Interests
    General Automotive
    Motorsport & Racing

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  1. Good point (and BatchelorDays), but the error code P0137 is very consistent (Sensor circuit low voltage Bank 1 Sensor 2). If i wait to clear it I may also get P0138 (Sensor circuit high voltage Bank 1 Sensor 2). Always the same sensor. Worth asking if it's the same one with the damaged wiring. Pic attached.
  2. It's the electrician's word for the OBD II reader! I'm not getting any other codes now, so I'd just get the same code doing what you suggest. I read it is best to replace both if you have an error on one bank - sensor 1 pre cat and sensor 2 post cat. The logic being that if sensor 2 has failed and is replaced, sensor 1 whilst it may still be working ok may not be in sync with the new sensor and throw up an error (think that was the gist of it). Anyone got experience of fitting these as the price variation is huge. With an older car I don't need one to last another 10 years, but equally don't want to create problems by fitting a cheap poor functioning one!
  3. Latest update... ! I got a return of the error codes after a couple of days - O2 sensor circuit low/high voltage Bank 1 Sensor 2, codes P0137/138, then more - so I got the car back to the guy. He said there were loads of codes which he cleared. He did a long test run and said the can ran beautifully with no problems. Suggested I leave the dongle unplugged as they can throw error codes but if I keep getting O2 sensor error codes it's likely I'll need to replace it. The car is running fine but every 2nd or 3rd start up, the engine light will come on during a journey, always the same, which I stop and clear, then it's fine again for a while, so I going to replace the sensor. Anyone got any experience of replacing sensor 2 in Bank 1? I'm quite competent if it's accessible. Otherwise its back to the garage. What is an OEM part number? Thanks. Nearly got this sorted.
  4. I don't think that was a problem - the engine kept running rough on tickover when I had the error codes. It is stopping as I would expect now, after the repairs. The battery was replaced March 2017 and hasn't been disconnected since. Surely the problem would have been there when I got an engineers report before I bought the car ? There's a lot of talk here about 12v battery issues, so it seems they can be problematic.
  5. Thought about it - if the car's going fine why tempt fate! If the consumption stays down I'll try. The guy reckons the old sensor was probably ok. I'll put it in the spares dept 😉
  6. Got the car back today. 3 hours labour, no parts required. He found error codes relating to the MAF sensor and all 02 sensors (same as me). He found a blown fuse and replaced it, cleared the codes and test drove. Fault returned but fuse not blown. Scan found fault on 02 sensor 2, band 1. On the ramp he found damage to the wiring loom - he reckoned due to the car grounding or such like. He cut out the bad section and repaired it. Cleared the codes, test drive again and all ok. I doubt I would have ever found that! But as someone said, get it checked before you start replacing parts. On the short drive back, the hybrid battery went from very run down to very well charged - green, one bar from the top. A bit early to say, but it felt like the hybrid system was charging more than needed and the consumption was lower than I'd expect in town driving. That said, it drove down our road on battery so maybe it's settling in. I wouldn't worry! This was and interesting mix of one of those things rather than a mileage related incident. If your car has good history it should be fine. What was good to hear was David said he doesn't do much work on these, which implies they don't have many issues. Happy to have the car back, driving beautifully as usual.
  7. David Hammond of Hammond Auto Electrics in Guildford is the guy looking at it. Drove over with just the engine light on. He's had a look and found a fuse gone that (I think) is on the circuit that sends data from the MAF sensor. One of the four O2 sensors is faulty, plus some other bits I can't remember what he said! Not tragic and likely the old sensor was ok. So pleased this isn't being looked at by Lexus, they'd be fitting all sorts I expect! He's keeping the car in overnight as he needs it cold to check the rest. He also told me the AFS sensor warning light, which was on when I bought the car, is the front one not the rear, so he's done me a favour there, I was about to remove the rear one and try to fix it. He will check when it's on the ramp as it might just be a corroded wire. Good man, recommend him. Hopeful that I'll have a better car soon.
  8. I'll keep you posted - what's your mileage? Not wishing to pre-empt anything, my problems started with the engine not cutting out, also ticking over a bit rough. It's an interesting one...
  9. I think you are right - car going in on Wednesday so we will see. I've attached the Euro Car Parts item - it's Denso, made in Vietnam - just off China 😉 the same in all bar the Toyota name.
  10. Last Wednesday I drove 12 miles no problem. Went to leave 4 hrs later and all the warnings were back plus a high whistle alert sound. Switched on and off and eventually got rid of the alerts except the engine light. Called my breakdown cover people and they sent out a guy who cleared the codes using his Bosch gear. Drove home no problem. Next day same thing but cleared ok. Coming home was slow to get codes cleared. Advised the sensor may need programming in. No point going to Lexus as they’ll blame the OEM part. So I’ve left a message with an auto-electrics specialist to see if he can sort it. Will give an update when I can.
  11. Only the P0102, all the others have cleared, along with red triangle warning for the hybrid system. Will be doing three 10-15 mile journeys tomorrow so we will see!
  12. Hi all, thanks for all the help and suggestions - I have positive news! Something in me wasn't buying the earthing issue - all I checked on the multimeter was 100% good, and the aux battery checked out ok. Main issues that pointed to the Mass Air Flow sensor were lumpy tickover, dramatically increased fuel consumption, and (no idea about this but found it twice on YouTube) unplugging the connection to the MAF sensor when the engine is running doesn't cut the engine. So I thought I'd bite the bullet and replace it before I get Lexus involved. Bought a Denso one (same as the one fitted) online from Euro Car Parts for £153.99 - stayed away from the £30 eBay ones!! Arrived today. Before I fitted it, I tried switching on with nothing on (climate, radio, lights) to see if warnings were still there - had a thought the car washing guys may have got water in somewhere which mat have dried out... got the previous warning Check Hybrid System but a nasty new one Check four-wheel drive system. Changed the sensor, 2 minute job, switched on and bingo, all nasty warnings gone. Engine started and still ticked over rough so I took the car for a gentle run. Ran as sweet as you like, but the engine light still on. When warm I parked up twice and switched off, but it was still on when back home, HOWEVER I can't tell when the engine is running or not now. It cuts out as soon as I stop and there is no smell, or nasty electrical fizzing. Guys, all I have talked about would appear to related to the MAF sensor which I've read will go at around 120k if it is going to. My car is 125k. Such an easy fix if this is it (fingers crossed). I hope the engine light will correct itself and with it the only error code P0102, Mass air flow volume low. Is it possible a non Toyota MAF sensor will need resetting with better equipment than I have? I'll do some more miles and see - fuel consumption back to normal too as far as I can tell after a few miles.
  13. True - they are next to each other in Guildford! Is it safe to drive or shall I get it trailered in?
  14. Not sure an indy will know about the hybrid system?