Over a distance of 18,000km I have used Caltex 95 exclusively apart from 2 tanks of 98 that I tried several months ago (Which made no discernible difference). I have only had the software update so far - knock sensor has not been replaced yet and my pinging problem has been completely eliminated.
Excuse the n00b question, buddah51au - but this "learning" will it be lost when say the battery is cut?
Had my upgrade done at the belated 30k service. No pinging evident at all & also feels slightly more responsive than before.
It's interesting how many people are finding an increased responsiveness after this software update. I have a CL9 and it always feels more responsive after an ECU reset. This increased responsiveness you feel would probably not be due to the actual software update. It will be a short lived thrill.
I live in NZ and I had my knock sensor and ECU update done today. It was quite bad before the update and I'm happy to report it seems pretty good now. The car did seem a bit more responsive and the a/t seemed a bit smoother also. I'm looking forward to spending some more time in the car to see what the lasting impression is.
Yeah! As promised, I got the knock sensor replaced and software updated yesterday. So far, I feel greatly relieved enjoying the beautiful and smooth accelerating sound as it should have been for the whole last year.
I do feel it's more smoother when I push it to the extent around which I used to hear the annoying rattling. After almost a year suffering from hearing it, I know it so well that even though it wasn't 'reproducable', when it started making to pesky noise, I was just so confident to know how much I pushed the pedal and in what specific situation I would hear it. Sadly and ironically, I'm just so used to it and even my mind still tried to make the short-gone noise instead......I reckon the trauma would stay a bit longer than I thought.
I'll definitely keep monitoring it and update here. Hope we all have it fixed in peace.
It is my understanding that the base settings on the ECU are set for maximum performance meaning constant full throttle driving. As this is not constantly repeatable with road driving, nor would many of us drive our cars in such a manner for that matter, once the ECU is reset which can be done by disconnecting the battery it will take a few weeks for the ECU to learn our individual driving habits.
As we all drive differently, whether it be spirited driving or driving with economy in mind I always suggest to people to try and use the complete rev range at least once a week providing the engine is hot & of course it is safe to do so in the area you drive.
I have had a number of discussions with Fair trading in NSW, it seems that whilst everyone here is happy to have a whinge and wait, no one is willing to step up to the plate.
Fair Trading require anyone that has this problem to report it, so that they can exert some pressure.
If you are serious about getting your car fixed, take the right steps!
I live in NZ and I had my knock sensor and ECU update done today. It was quite bad before the update and I'm happy to report it seems pretty good now. The car did seem a bit more responsive and the a/t seemed a bit smoother also. I'm looking forward to spending some more time in the car to see what the lasting impression is.
I've been doing some more driving and I have some further feedback.
My car suffered from the 2.5k light throttle issue and also noticeable pinging when I nailed the throttle at 4-5k. Less obvious was a general hard/loud note to the engine when reved out. I've previously self tuned a DC5R with K-Pro and based upon what I was hearing from my Euro I would put the noise down to a slight lean mixure with mild over advanced spark.
So far the 2.5k light throttle issue seems gone as is the 4-5k issue. I was really hoping that the changes were going to help the hard/loud engine note and I'm happy to report it does seem to be making big strides in that area. I think it's improving each time I drive it and the engine note seems much sportier and tuneful.
Originally Posted by buddah51au
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