Back o2 sensors reading lean fuel mixture :/
Hi you guys have probably seen my orssom OTR intake problem well according to the scan tool it's reading lean fuel mixtures from the sensors behind the cats.. Why!!?? It's exhaust is stock except diff back mufflers which have been on my months. The OTR intake is on.. Must be caused by the intake? New cars are bloody shît boxes!!
I don't understand why you're complaining about your intake in some many threads, this is the third thread I've seen you complain about it!
You need a tune! End of story!
The OTR has caused the car to run lean due to the extra air coming into the engine, it has nothing to do with your exhaust, and this is why the engine light is on.
New cars are not shit boxes (although some are haha) they just have a lot of technology in them and it doesn't always take much to upset that technology.
Mace Remote Tuning:
LSX LXX V8 Remote tuning service :)
Oztrack Remote Tuning:
Autocal Remote Tune VE with factory camshaft (ACRT) by Oztrack Tuning - OZTRACK - VT-VE
Why do so many cars that have OTR don't need a tune then.. Should of bought a VZ clubby nowhere near the drama of a bloody VE
Besides if it runs lean for too long that only does damage. So I'm going to revert to stock it isn't worth the effort thanks for the help.
Different brands of OTRs maybe... I don't know why some do, and some don't throw warning lights. Someone else might be able to answer that...Originally Posted by Mitch-VE6LTR
At the end of the day though, you would have bought an OTR for a reason, performance, why go half arsed and not get a tune? I'm not having a go here, but if your response to that is 'I can't afford one' it would make more sense to wait until you can afford one.
That way you get to enjoy the full potential of the OTR and any other mods, without the hassle of having warning lights show up on the dash.
Even if you bought a VZ Clubby, you need a tune as no OTR will retain the MAF (I don't think)...
Why not tune it?
I'm surprised a tune doesn't just upset things more because it's not "Holden" settings.. Obviously that musnt be the case but it's just surprising that's all.. Apparently a tune with the maf isn't much less compared to a mafless in regards to gains.
Just because the tune isn't a Holden thing doesn't mean it'll upset the car, everything will run better than when it left the factory, performance, fuel consumption, drive ability, it will all be better (providing it's a good tune).
A maf and mafless tune, in regards to gains between the two, they are so small you would never notice. Example, MAF tune might make 230rwkw, mafless might make 234rwkw... examples only!
Unless you're planning on going nuts with mods, FI, big cams, head work etc, leave the maf and just get the car tuned, you'll love the result.
What's also weird is it hasn't lost power
Ok thanks mate I'm in discussions with Steve from MACE as we speak cheers.
Steve will sort you out, he's tuned my car.
Alright thanks what's involved? Could you tell me what you had to do? And how long the whole process took? Could I expect 300kw at the fly?
I thought you were talking to Steve about it? I'll PM you
The end power result will depend on what you've done to the car...
Update; my vaccum hose was loose could POSSIBLY be the problem, I'll see how it goes if no success I'll probably mafless tune the car with a VCM intake.
F O R U M W A R R I O R
Any leaks in between the MAF and the engine will result in a lean mix as its unmetered air that the ECU isnt accounting for.
Silver Certified.
No leaks.. I think it's just the shitty ECU Holden have put in it. I know from what I read once it's tuned I'll always have problems it will need constant re tunes due do something upsetting it as it can't adjust like a factory set up. This is doing my head in. If I get the remote tune then ill forever be emailing back and forth untill it's right wish it was just one program that you uploaded and happy days.
Blown VT LS1 450rwhp
You have no idea. Stop wasting your time and our time and put your car back to stock!
Surely You Jest
Yep agreed...reckon you are just trolling. You've already said you have a scan tool....use it to reset the code, take a few sedatives and have a nap.
You didn't have to reply for a start so I don't see how I was wasting your time. I have a near 50 grand car that I don't want to #### don't u understand that!!??? It's not a toy it's my only car so I want performance but to be practical drive normally and run on 95 octane fuel that's not too much to ask!
Resetting does jack it just comes back. I'm not trolling I'm simply doing research!
AUSTRALIAN MADE AND OWNED
hail to that brother! as for you mitch you say its doing your head in!! what about us!! you post.. what 3 threads trying to find out info. we have told you everything you need to know and you still are'nt satisfied."i'll get it tuned by xxx tuners", "no i wont" "yes i will if i dont have probs". where did read that shit about having constant problems? on a yank forum i bet! FFS either drive to bloody sydney and get a tune by a reputable tuner or put it back to stock and stop this endless merry go round and giving us well intentioned guys (well we were at the start) the shits..reply if you want i wont be reading it as like the other guys ive given up on you
im out of my mind at the moment...please leave a message
Surely You Jest
Well perhaps if it is going to stress you this much you should just pop the stock intake back on it, reset the code and then stop playing with your car that is "not a toy".
Last edited by Jarp; 10-01-2012 at 08:43 AM.
Ok!!! 2 questions and I'll go away!!!
1) mafless or maf doesn't REALY matter?
2) I read a thread with some guy that got a time from down In VIC saying 2010 onwards don't like mafless tunes correct? Or is that just a bad experience?
By the way parkes Holden's dealer principle has used the tuner I'm going to.
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