Byngo123

Hi Malc, Seems to be fine. I've been driving it almost daily for 3 months, seems to run well until that light comes on, and then it seems a little sluggish and jerky until I turn it off and on again! All fluid levels are good and there's plenty of it. Average MPG seems to be between 20-25 from what I'm calculating a full tank is getting me (380 miles to roughly 70L). Most of my journeys tend to be on longer stretches of road so it will get a good blow-out when I can, but there is the odd short trip to the shop thrown in. But I guess the short version is that it's generally a good runner until I get the light on.

So I've pulled the codes last week, haven't really had a chance to look until now, but I'm getting the following. 21 - Main oxygen sensor signal (on left bank) 52 - No. 1 knock sensor signal 71 - EGR system malfunction I drove it this morning and it did have a bit of a stutter around 2k RPMs, then proceeded to throw up the CEL again. Pulled over and gave it a restart, code vanished and drove fine all the way to work! After doing a fair amount of research this morning, it looks like the 52 code for knock sensor can be caused by a multitude of things not related to just the actual knock sensor, including the O2 sensor and EGR causing rough running! Any advice on first steps? I've got 2 O2 sensors on order, might as well get both replaced at the same time for peace of mind, but will want to address the EGR system sharp-ish to avoid any further issues. What a headache!

Couldn't find another post that related to the issues I am having, so I have created a new topic, please feel free to let me know if I'm just echoing someone else! I have a 1997 LS400 on 84K miles. In relatively good nick, no obvious issues. I've owned this for around 2 months now, and I've not had any problems with it other than a check engine light that comes and goes as it feels like it. I can be driving to work and it will pop on, no loss of power or strange noises, the car will drive as it normally does. I will stop the car and restart it, the light will turn off, however it seems to randomly come back on at any time. Obviously I want to address this issue before it potentially becomes something serious. Has anyone else had this issue with their LS? I haven't checked codes yet, but I thought I would ask and see if this has happened to anyone else before I start diagnosing potential issues.

I did notice this before I went to look, from a quick inspection of the outside it's almost invisible to see, but looking closely you can see where it has been pulled, and the parking light doesn't quite line up with the guide holes. I think an inspection with my local mechanic and a little bit of work could get it back to how it should be, but it's not urgent, just a niggle that will stay in my brain every day until it's done! Other than this, I think it's like you mentioned, will last forever if I keep on top of everything. Familiarising myself with common issues as we speak, will come in handy at some point I'm sure. Thanks! 🙂

Hi all, Been looking for a nice example of a LS400 for a while now, and here it is! 1997 Lexus LS400 - 84K miles - Reasonably good condition! I think the colour is called Cashmere Beige? It joins my 2000 BMW E39 528i in taking over all available driveway space, and I'm shocked at how much bigger it is than my 5 Series. Already developing a slight headache from what looks to be a bodged repair to the front O/S wing/bumper which is also causing issues with the parking light, but other than this, it's a lovely example in my favourite colour. More pics below 🙂 Here's to many more years of ownership, as I don't plan on letting this go any time soon!