Hi all, my gs450h has a blowing centre section exhaust, i assume its the original. The car has done 327k miles, yes you read that right. Occasionally the EML comes on, with error code p0420,
P0420 LEXUS Catalyst System Efficiency Below Threshold Bank 1
I can clear it, but it does come back after a few days, the problem is no doubt related to the blowing. Can these be got as used parts? Im struggling to find one. Do these have just the one CAT, or two?
So I have experienced my first and so far only issue with the F. I had a pre-cat lamda sensor fail... to be specific
P0031 H02S Heater Control Circuit Low Bank 1 Sensor 1
So dashboard does its Christmas tree impressions on the M6, I pull into the services to check it out, I must be one of few who carry a code reader in the car with me at all times just for interest. Find it to be the lambda so no great drama carry on my merry way. First call of course to Lexus to give them the specifics and to get a quote. £580 inc. VAT fitted. So after I picked myself up off the floor started searching and this is what I found.
Denso/Toyota to a specific replacement, part no. DOX-0504 and can be found here: http://www.denso-am.co.uk/e-catalogue/ and can be bought here: http://www.sparkplugs.co.uk/denso-direct-fit-lambda-sensor-dox-0504 for £94 although I have a motorfactors around the corner from me and I paid the same through them.
Looked at fitting myself but without a ramp I wouldnt recommend it. Being the pre-cat its pretty well hidden, you can get at the sensor to remove easy enough but the connection to the loom is very well hidden. I took it to a local independant and watched the process. For information at this stage Bank 1 is the bank of cylinders containing cylinder no.1 and is the passenger side of the car (I didnt know this). So they had to remove the small heat shield that sits behind the manifold to be able to get a hand up to unclip the sensor from the loom, The extension they had to use to take off this shield must have been near on 2ft. After its removal everything was easy, took them 45 mins all told. That 45 mins plus the fault clear and re-check was £60. All in a grand total of £154. Where Lexus get their figures for service items I have no idea.
Anyway, this may well be useful to others in the future.
Happy motoring LOC members....
help please ladies and gents
I have recently purchased a IS250SE 2006 plate 81k mileage and this morning I received a warning light VSC and engine / wheel slide warnings. The car has been put on a diagnostic which is showing catalytic converter problem, does this sound right?
if so any ideas on where I can get this repaired at a reasonable price?
By animus nocendi
My DPF is so blocked I have to avoid driving at busy times or the engine will cut out.
Can anyone recommend a decent company that can remove, clean and put the DPF back on?
Has anyone removed their DPF and cleaned it out?
My understanding is that they can be cleaned in one of the following ways:
1. In a device which pumps pressured air through it, then it's placed in an over at 600-800 degrees C for several hours, then air pressures through it again.
2. The Ceramix method where it's placed in water where ultrasound vibrates all the soot out, then pressurised air is pumped through to remove anything that is left.
3. Remove DPF or have garage remove it, then DIY - use a water pressure washer to remove all soot, dry then put in back in.
Any advice is appreciated. I'm not going to pay Lexus over £1000 for them to replace their faulty DPF. When I spoke to them they said that this happens on all diesel cars. Strange how it's never happened on any of my parents cars (X5 3.0d or E class (280d), or on any other family or friends vehicles.