Thread: Any way to adjust throttle sensitivity in HI on Puma?

Isnt there a sensor on the transfer case that tells the ECU wether its in HR or LR? It was in a fairly recent post on here. Go back a page or two in the defender section

yeah thats what I remember. ashtrans posted it.

However in his post he mentioned disconnecting it will let you keep your HI settings while in LOW. I think I want it the other way around! lol

Might have to do some testing tomorrow. Try it in low and see if the throttle response is different.

Alright here's a quick video.

first part is in low 2nd. Not as bad but still a bit jerky maybe (then again maybe im actually trying to get it to jerk)

then I switch to hi 2nd. you can kind of hear it clunking about when it goes jerky. Sometimes stepping on the accelerator very smoothly works. Other times regardless of how smoothly i step on it it kangaroos. I'm just hoping its adjustable so i can drive smoother through suburban streets.

[ame=http://www.youtube.com/watch?v=KUkbUN8Up-8]Defender 2.2 puma - YouTube[/ame]

I get into hi 2nd at about 25 seconds.


OR maybe, seeing as now the revvy thign is disabled, I just have to keep my foot on the gas longer. and let it off really smoothly (which is a bit hard in city traffic)

Originally Posted by LoveB

Righto, I did the looping method on the clutch switch so now I can shift normally...

The only other thing bothering me now is the throttle response/sensitivity at low speeds (or mainly whenever I let off and step on the throttle)

I'm not 100% sure but i remember reading that in high rage you get 70% movement so when you step on the throttle its already at 30%? and at low range you get 100% movement so its a lot smoother.

Problem is driving in the city in HI while at low speeds seems to be proving difficult. The car will kangaroo when I step on the throttle or release it. (which I am guessing is due to the fact that it goes straight to 30% throttle?)

So my question is, is there anyway to adjust the sensitivity so that even at low city speeds the car doesnt get too jerky? its otherwise fine. Rolling out from a stop upto highway speed is great and no clunky gear changes.

But anything 0-30/40kph and it gets quite sensitive at low speeds. I either have to wait till the revs really drop so I can step on it where it will speed up (more than I want it to) or speed up and let off again which only just causes it to kangaroo more. lol.


Btw, how I did the looping method is I looped the wires at the connector and plugged it back in. Should I leave it unplugged or loop it at the wires before the actual connector? I'll try and get a video up tomorrow for a clearer idea. thanks.

Mate, I would definitely go to your dealer and quote that tech bulletin number. That software upgrade made a big difference to mine. It's not perfect but it's better.
I don't quite understand what you've done with those wires at the clutch m/c. Can you post a picture?
I think you're right about the transfer case. If you unplug the wires there it will think it's always in high range.

I agree 100% with Wally, go to your dealer ask them if there are any upgrades for the ecu on the drive train as your car is difficult to drive. I called in yesterday to my dealer without any warning, they checked for updates, found 2 and downloaded them on the spot. the ute is much much better to drive, particularly in high range cross country in first and second gear.

Thanks boys.


Summit, I would guess thats the only dealer in canberra yeah? I just emailed them last night actually. So hopefully they get back to me today then I cna just take the car in to them.


Wally, I'll get a pic up for you in a bit,. Basically I put a wire to loop the clutch swtich which disables the ecm from holding the revs up when you shift..

Local dealer emailed me back already... monday will be good for them they say. and need about half a day incase its not just a pcm update. fine by me. Will just wait around the dealership probably. dont see the reason to get a hire car for just half a day anyway

Originally Posted by LoveB

Local dealer emailed me back already... monday will be good for them they say. and need about half a day incase its not just a pcm update. fine by me. Will just wait around the dealership probably. dont see the reason to get a hire car for just half a day anyway

I would suggest you just undo all that elaborate bypassing and bridging tricks you've been describing in the clutch and throttle posts...

Pretty certain Land Rover will take a very dim view on that...

Cheers,

Lou