Miles Simmons

Fingers crossed it does Ian. And remember full bottle for full tank and dispense additive before filling up. I know this may sound a bit stupid but what kind of drives is your IS220D used too? Short journeys, long journeys, mix? Have you tried giving it a real good thrashing? Sometimes accelerating to just below the redline in 1st, 2nd and 3rd two or three times can clear any unwanted blockages and help with excessive smoking. I would also consider doing a few good 40-50 mile motorway runs keeping the car in 4th gear at 65mph or 5th at 80mph (if you don't mind taking that risk) that will certainly help with DPF regeneration and get rid of excessive coking on inlet and EGR valves. Gotta be worth a shot 🤷🏽‍♂️

I would try the Archoil Ar6400-D, Powerenhancer are the retailer and a brilliant company to deal with. I've tried many additives over the last 15 years (Forte, Wynns, Redex to name a few) all claiming do the same thing as Archoil and none come close. It's got to be worth a shot for £25 and if it does work, then continue to use Ar-6900D which is a fuel conditioner that increases the cetane rating of standard diesel, in effect turning it into premium diesel (10ml treats 10ltrs of fuel) and a 1ltr container costs £27 so for a full tank of diesel it costs you about £1.80, which is about £6 less than it would cost to fill up with premium diesel. I hope it helps mate.

Hmm, now I'm not sure, I took that advice about it being located on the fourth cylinder from another post on this forum and no need to apologise, I will stop in at my indy garage and ask them to explore again. Thanks Shahpor

Hi Ian I'm a complete novice when it comes to tech advice, but my car definitely doesn't have a fifth Injector as far my garage and the technician who remapped it, confirmed. I would definitely get your Toyota technician to inspect the engine bay and confirm your model has all five injectors, providing it does, he can then retest. The issue as I understand it with the fifth injector, is they get coked up and the flap gets stuck open, which results in a constant pumping of fuel into the catalytic converter, obviously that would explain poor mpg and smoking. I would highly recommend using some Archoil Ar6400-D before you employ the Toyota technician, it's a treatment I've been using religiously with my previous 3 diesel vehicles, nearly 300k miles in total, it has solved all manner of issues from problematic EGR's, flat spots, lumpy idle, poor mpg and its only £25 a bottle approx, which would be a very cheap fix. It's a fuel additive in essence, you just pour a whole bottle in a full tank of diesel (make sure you add to an empty tank before filling to properly dilute the additive) https://www.powerenhancer.co.uk/product/archoil-ar6400-d-max-professional-diesel-engine-turbo-dpf-cat-cleaner-concentrate/

Yeah Shahpor It should have been located on the fuel rail by the fourth cylinder. But it simply wasn't there 🤷🏽‍♂️

😂 That's how I've always viewed diesels, but since they modernised hugely c.2003 onwards, I have come to expect more refinement and performance more in line with a petrol

Hi there Sorry to hear of your issues. Are you 100% sure that your car has the fifth injector? I too have a 2006 Lexus IS 220D and mine doesn't have the fifth injector. All the best Miles

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Yes, I too had only ever heard reliable things about Toyota's D4D engines, they make three variants as far as I'm aware 2.0, 2.2 and 3.0, all with different maps. My IS220D is the 2.2 and that comes in a 148bhp or 174bhp version, neither of which I think is suitable for the Avensis or IS220D, 208bhp feels much better suited. Here is a review for the engine in an 09 Rav-4 ( https://www.greencarguide.co.uk/car-reviews-and-road-tests/toyota-rav4-xt-r-2-2-d4d/#:~:text=The engine feels gutsy%2C but,gear changes in this car.) and attached is a screen grab of an excerpt from said review, I would agree entirely the gearbox is not one for rushed changes and really is the only genuine fault I can identify with this car

Morning Vlad I guess the car is returning decent mpg figures, It's just I'm an optimist and had in my mind that mid 50's would be achievable. That is super impressive re: ZX1. Its demos like the one such as you experienced that go a long way to shutting up doubters and getting customers on board. I'll take your knowledge on board and with my own experience and continue to use ZX1 happily. That's a shame that you got off put off buying an IS220D. I'll definitely be sticking with mine for years to come. Thanks for dropping in 🙏🏼

Hey Mincey thanks for dropping by and for the positive comment! I've got to be honest, this car has put a real smile on my face. Whether it's the level of refinement, the build quality, the new torquey map, or the beige interior that makes me nostalgic imagining how my dear, late grandad would have felt in his XJ12 with beige leather/carpets/headlining. And yes, I've got to say, I was a little trepidatious pre-collection of my IS220D, having already bought the car, and then having read all the horror stories on this forum. Yes the IS220D has its faults, but which car doesn't, and I can't help but feel many folk seem to focus more on the negatives than the positives. I would actually say the only real fault/thing I would change on the IS220D is the gearing, it is to say the least, peculiar, especially so as the motorway speed limit in Japan is less than the UK, 62mph; makes me wonder why its got a sixth gear at all, because at 62mph, fifth gear is more than adequate and very fuel efficient at that speed. I should add, that in my previous posts I've neglected to say that my car doesn't possess the alleged dreaded fifth injector, so I assume this was something that was introduced to later versions of the Gen 2's.

Okay so update on the remap. I have since done approx 500 miles and the ECU should, in theory, have learned the map and adapted it to my driving style by now. I have to say I'm incredibly impressed with the increased power, but less so by the mpg gains; on Thursday I completed a 90 mile journey, approx 90% Extra Urban/10% Urban and averaged 51.5mpg. Today I completed a similarly sized journey, approx 60% Extra Urban/40% Urban and averaged 47.2mpg. Not bad, and seemingly considerably better than most achieve from the IS220D but not as good as I had hoped for. Maybe the map will continue to improve and adapt, maybe not, maybe that's all the old girl can offer and I was just overly optimistic on figures/gains, who knows, only time will tell I guess. On another note I purchased some ZX1 from Halfrauds just to see if would make a discernable difference. Since Vlad kindly informed me of the product, I did my own research and found it split opinions. But I have to say that after adding 225ml to the engine oil and 25ml to a tank of fuel, I can genuinely notice a difference in how much quieter the car is at idle, far less tappity and it just feels smoother under load. I've noticed absolutely no difference in power/mpg gains. The car is booked in with DW Detailing who will be performing a full enrichment package on the car including a ceramic coating this coming Thursday. Really looking forward to seeing what it'll look like afterwards. Will post photos in due course. One final thing, can I invite anyone and everyone to offer their opinions on which diesel they favour most. I've always used Shell.

😂 I hope I'm like that at 61. I'm sure I will be. I still laugh at my own farts

Totally, 37 going on 17 🤦🏽‍♂️

So had the remap today, first impressions, every one who owns an IS220D should have a stage 1 remap. It literally brings the car to life. The difference between 174bhp and 208bhp is very noticeable in the higher gears (4th, 5th, 6th) and the added 45lbft makes 2nd and 3rd gear an absolute joy, in the blink of an eye you've made your way from 30-70mph, whilst being firmly pinned back in the seat, gone is the sedate linear power delivery replaced by an expressively torque driven power band that ends around 3900rpm where the increased bhp takes over. Two things to bear in mind with a generic map (even if it was originally dyno created) it will not cure the turbo lag, which is more severe than I've experienced on any other TD before and it won't remedy the 6th gear issue on the motorway, it does however make the car labour considerably less in 5th gear at a slightly lower speed than the UK motorway limit (70). Naturally I spent most of my time exploring the new power bands, and thus the mpg figures I returned for the 100 Miles I covered post map weren't anything like as good as they could have been, but despite being a 50/50 mix of urban and extra urban driving, the return was 46.1mpg, and I'm confident another 10% can be yielded once my normal driving style resumes. On top of this, it takes the ECU approx 500 miles to learn and adapt to one's driving style, and as a result, average mpg gains from a fully adapted map range from 3-5%, so all in, I think there could be another 15% increase in mpg to come after the next tank of fuel, which would equate to 50mpg plus on a 50/50 split of urban/extra urban. All in all, well worth the expenditure and totally transforms the feel of the IS220D.

Hey Vlad Will do. Its a 2.2ltr. I'll make sure to follow guidelines

Well I'll echo your neighbour Vlad, uckinghell 😂 I've order 250ml from Halfords. Will dump 225ml in engine oil and 25ml in the fuel. Thanks again mate

Okay Vlad, all understood. I'll stick with Archoil for the time being. Is ZX1 Extralube? Do you have a link for a reputable seller/site. Thanks in advance

Does anybody have any experience with replacement/upgrade air filters for the IS220D. My neighbour who I mentioned who had the remapped IS220D, just messaged me to say he has an aftermarket performance air filter that I can have of I so wish (https://www.rtecshop.co.uk/k-n-air-filter-for-lexus-is220-2-2l-all-year-2006/prod_200878.html) My local garage said the only thing that wasn't pristine in the engine bay of all the replaceable service items they changed, was the air filter, so I'm wondering whether or not I should I take my neighbour up on his offer and stick one of these in. Apparently they can be reused and have a 100k lifetime. Thanks in advance

Hey Mr Vlad Yes it seems as though I've landed on my feet! And I intend to do my utmost to keep this car in as good a condition as possible so I can pass it onto someone else in the next few years with a clear conscience and in good faith that it has been meticulously maintained. Interesting to hear you mention the remap and DPF delete on the Mondeo, I did wonder about getting that done, but the car already had 100k when I bought it, so I didn't want to stress it out. I thought to myself if I can get it cleaned up and maintain it regularly to a high standard it might last another 100k and it did just that, without a single fault, breakdown, issue, the thing literally never missed a beat and I must say for only a 130bhp unit, it was well balanced, had a very linear delivery and never felt lacking in power. I very much enjoyed that car! The Titanium X Sport was next on my list, but since 2021, good second hand examples went up about 30%, due to lack of new car imports and the global chip shortage, so I shelved the idea and boy am I glad I did. Yes Archoil is fantastic stuff, but can I presume you now rate Millers more highly? If so can you please advise on which Millers products are the equivalent to AR600D and AR6900D-MAX? I'll keep you posted on the remap, it's happening this Tuesday, the 28th, it'll be a standard stage 1 dyno driven map, no additional hardware. The remapper has very kindly offered to do a DPF and EGR delete F.O.C, if I so wish and my local garage are very accommodating if you get me. All the best and thanks for taking the time to reply.

Don't do yourself down, perfectly reasonable rationale behind your thinking and I really appreciate the advice. No sensors in front bumper

Just been through the process and no parking assist present, only tach indicator, speed indicator and fuel primer 🤷🏽‍♂️

There isn't Mincey

Also, I've noticed the parking sensors don't make a noise when selecting reverse or when nearing objects. Could it be a replacement bumper or am I missing a trick?

That's what I figured Steve, it was way ahead of its time and what with me being a bit of a technophobe, I enjoy a bit more of an analogue experience 🤣