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Good morning folks, I would just like to wish all of the members of the LOC a Very Happy Christmas and a Happy and Healthy 2015 too. With massive thanks to everyone who has helped me with my various little queries etc. Have a great time folks.

Lovely car! Enjoy it! Stoke is my local dealer and the folk in there have always been brilliant. Not bought a car there - yet!

thanks for all your contributions. i'd thought i'd update you: i wrote out a private settlement receipt/waiver for the injured party to sign releasing me from any damages and future damages, which he signed i will be speaking to my insurance tomorrow. they told me they would put it on a file note,and not class it as a claim. however, i will raise the above with them to get a clear idea of how they will view it in the future. thanks

I always drive mine in PWR mode .................. someone a while back said that the petrol consumption was no worse for being on PWR .... and I think I agree although really don't bother worrying anymore about how much fuel I use .... i just fill up when the old lady hits the orange. Malc

Every now and then i look at pwr button smile. And hit it.

Hope your Xmas is as peaceful as the LS. I love the silence, but on the way home last night had to boot her up to overtake, I just love that sound (but not the fuel consumption)

REPAIRED FOR £7 !!! Hi all, I have finally repaired my transmission oil pump on my GS450h !!! After many months of 'trying to find time' to repair it, I finally got the car on a ramp today. Firstly drained the ATF fluid from the gearbox (approx. 4.5 litres came out). I them removed the exhaust bracket mounted on the gearbox (4 bolts). Then I unbolted the oil pump (4 bolts) from the gearbox and unclipped all the connectors from the oil pump controller and wiring mounts from the chassis and fed the cables back from the engine compartment to the gearbox area. I then checked out continuity of the wiring from the connectors to the pump. All were fine. Next I removed the pump housing from the motor and inspected the shaft by trying to spin the shaft on the output of the motor. It was seized. I tried moving it with some mole grips and the shaft moved, but grated. I then took the pump assembly apart to look for brushes (had to drill out 3x M5 screws as they were seized on), only to find that it is a brushless motor with 3 coils, like a stepper motor. I checked out the front shaft bearing and found that it was worn, causing the shaft magnets to grate against the motor coil assembly. Bingo.!!!!! Fault found!!!! I then visited my local bearing specialist and, hey presto, he had the correct bearing in stock! I also purchased the rear bearing too, just as a matter of course, totalling £14 in parts. They are only little 22mm bearings, and are common parts. Then I started to reassemble the motor with the new bearings. I had to drill out the 3 M5 screws completely and re-tap the threads to M6 and fit 3x new M6 screws in place. I then reversed the removal procedure and then filled the gearbox with ATF. I started the car. The same Hybrid fault came up. So I plugged in my code reader and cleared the P2797 code, and HET PRESTO. NEXT TIME IT WAS STARTED, THE CAR RAN PERFECTLY. I now had full Hybrid functionality and a fully wrking car. I am ecstatic. and extremely pleased with myself. Considering Lexus say the only remedy is a new oil pump at the cost of £3240. I have fixed it for £7. All in all, it took me 5 hours to repair (not including finding a bearing supplier). Lets hope this is good news for all of us GS450h and LS600 owners (same pump on both cars). Regards, Giles.

Yes, it seems a bit different from the LS430. I looked it up in the Toyota/Lexus catalogue and indeed it seems that you would have to replace the whole assy. The actual air flow meter sensor is quite small. I made a photo of the interior of the sensor in my LS430 (which is in the air stream): You could try cleaning it with a spray can of MAF cleaner, if you have not done that already. Sorry I can't be of more help to you. Jac

Steve It is possible to read the diagnostic codes on your car by using the box terminals on the engine and the one in the drivers footwell .The method used is simply connecting the terminals within the respective boxes and reading the output either on the engine warning light or in the case of the transmission on the overdrive on off light. The information is transmitted in a series of intermitent flashes or blinks of the respective light,the signal is then matched up to whatever code it designates. But unless you have access to the workshop manual were all the methods of terminal connections and codes are stored it is unlikely it will be of use . It is also possible to check a heap of other components in the engine including the operation of the oxygen sensors and how good or bad they are.The Manuals there are two, are about £300 from Lexus but they do come up on ebay apparently from the USA and to all intents and purposes will cover UK and Jap imported Lexus cars.

Hi It as the symptoms of one of the oxygen sensors failing on the left or right bank these determine via information given by them to the Engine ECU how much fuel to give the engine for the right mixture under driving conditions demanded by the throttle. If say the oxygen sensor is giving a signal of unburnt fuel when there is'nt any unburnt fuel then the fuel supply will be restricted when it gets to a certain preset rev range in the computer.The Oxygen sensor fails gradually allowing the engine to function but giving a timely warning to get the fault rectified .If you continue to run the car until it as completly failed the engine will not start or if it does it will run awfully and you will get a engine warning light. There are sites in the USA that supply oxygen sensors relativly cheaply and they are not difficult to fit.The immediate task is to determine which of the oxygen sensors is failing. There are two one to each side if you are unable to test them for electrical resistance as per the workshop manual instructions ,then a quick solution would be to replace them both, at a rough estimate of say $100 dollars its a lot cheaper than Lexus. Thanks for the suggestions guys, the lastest is that both CATs are in good shape and the garage found one fault code indicating a faulty oxy sensor, but no indication of which one... Hopefully the guys will be able to narrow this down. Hi According to the LS400 workshop Manual ;troubleshooting diagnostic codes . code 21 Main oxygen sensor signal on left bank. code 27 sub-oxygen sensor left bank code 28 main oxygen sensor right bank code 29 sub oxygen sensor right bank.hope this helps.