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Author Topic: tuning box  (Read 10275 times)

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sparkybun

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tuning box
« on: 14 July 2006, 14:20:14 »
Hi,

Just bought a Tuning box from www.hhtuning.co.uk  for 2.5td.

It has a fly lead that connects to one of the pins of the plug to the MAF.  It says connect to pin 6 but test the voltage first. It says voltage should be 0.3-0.4 or 1.5-2volts when idle and 3-4 volts when revved up.  Well pin 6 is at .03volt and doesn't move and have tested all the other ones and apart form the 2 cables that are 5 volts and 12 volts they are all sat at about 0.03volts including pin 6.

Does anyone have any ideas?

Thanks

Mel
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nixoro

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Re: tuning box
« Reply #1 on: 14 July 2006, 14:34:34 »
Which one is it on the website is there a picture just out of curiosity.

Not sure what it does so cant advise :-[
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sparkybun

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Re: tuning box
« Reply #2 on: 14 July 2006, 14:38:51 »
hi,

http://www.hhtuning.co.uk/tdstuning.htm  this is the one.  Apparently the fly lead is just to tell the box that the engine is changing speed.

Thanks

Mel
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Marks DTM Calib

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Re: tuning box
« Reply #3 on: 14 July 2006, 14:45:00 »
Hmmmm....not sure about this one.

The TD unit measures the airflow and adds fuel accordingly, I assume it connects to the diesel pump as well.

The MAF signal is normaly a 0-5V signal (from memory) on these so at idle you would expect it to be low....

Do any of them change when you rev it and what year is the car?

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sparkybun

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Re: tuning box
« Reply #4 on: 14 July 2006, 15:52:53 »
Hi,

Looks like I've found it now.  The instructions say pin 6, I phoned Germany and the chap there said Pin 6 for Range Rover & BMW but Pin 2 for Vauxhall (Opel).  So off I go expecting to see Pin 2 change with Revving but........NO.  So again check all others and now it looks like it is Pin 3.  It is sat at 1 volt at idle and about 4-4.5 at full revs - not sure why i didn't see it first time, maybe the negative probe was not tight!!??.  

Thanks for all the consideration and I will post as to the effectiveness of these boxes.

Cheers

Mel
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sparkybun

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Re: tuning box
« Reply #5 on: 14 July 2006, 15:54:06 »
Hi,

Sorry, forgot to add it is a 97 'R' Elite Auto Estate.

Thanks

Mel
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sparkybun

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Re: tuning box
« Reply #6 on: 14 July 2006, 21:27:50 »
Hi,

Well my mate has installed the Tuning Box.  Has only tried the car around his area no big runs but his comments by text was "A bit mental now with loads of Grunt".  He's in work tomorrow so a long haul up the A13.  Will fill you in with what it's like tomorrow.  The box cost £278 which seems good value at the moment.

Thanks

Mel
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omegaV6CD

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Re: tuning box
« Reply #7 on: 16 July 2006, 05:54:57 »
Not sure your box will do anything else than increasing low end torque as no matter how you change the signal of the airflow meter the fuelling will be only as much as the ECU allows so basically you will not get a single bhp out of it. There are much more effective ways to tune your TD that will cost you less money. I could help if you tell me at what emission level the engine is certified.
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sparkybun

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Re: tuning box
« Reply #8 on: 17 July 2006, 08:53:41 »
Hi,

Don't know what the emissions are although it did pass it's MOT on Friday!!  The update so far:

The Car now has a ridiculous amount of power (not sure if it's increased bhp??)! (This is all second hand info. as i have sold the car to my mate a couple of months ago).

However, the reason we bought the box was because we thought the car was underpowered due to it seeming to hunt (the Gearbox that is) around the 2500rpm when on motorway/dual carriageway and seemed to take an age to change up.  Now the box is on it changes a lot better BUT... now seems to slip.  When youput your foot down the engine revs straight up to about 3-4000rpm and then changes with big Clunk!!  Now I have a feeling there is something going on witth the box but What.  My mate took it to a GearBox Specialist (before he put the tuning box on) who went out for a ride with him plugged in his box of tricks and told him "there's nowt wrong with the box, no fault codes it's just that the engine is a little underpowered".

Now is it time to start thinking about putting an AR35 box on?  If so what's the likely cost - and do you do AR35 GEARBOX PARTIES!!!!!!!!


Cheers

Mel
« Last Edit: 17 July 2006, 08:55:02 by sparkybun »
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Marks DTM Calib

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Re: tuning box
« Reply #9 on: 17 July 2006, 09:01:31 »
Quote
Not sure your box will do anything else than increasing low end torque as no matter how you change the signal of the airflow meter the fuelling will be only as much as the ECU allows so basically you will not get a single bhp out of it. There are much more effective ways to tune your TD that will cost you less money. I could help if you tell me at what emission level the engine is certified.

Fortunately its doing much more than that, it connects to the fuel pump setup and monitors the MAF.....it doesn't modify the MAF reading.
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sparkybun

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Re: tuning box
« Reply #10 on: 17 July 2006, 09:02:57 »
Mark,

Any idea on the GearBox??

Thanks

Mel
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markey mark

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Re: tuning box
« Reply #11 on: 17 July 2006, 09:27:07 »
ronnies the man to talk to bout td auto boxes  8-)
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Marks DTM Calib

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Re: tuning box
« Reply #12 on: 17 July 2006, 09:28:39 »
It sounds like a slipping clutch or possibly a low oil level (easy to check, see the Tech section)
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sparkybun

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Re: tuning box
« Reply #13 on: 17 July 2006, 09:29:20 »
Hi,

Yes I know ;D  Just hoping he's up and about :D :D

Ronnnniiieeeeeeee........


Cheers

Mel
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sparkybun

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Re: tuning box
« Reply #14 on: 17 July 2006, 09:30:28 »
Hi,

Ok can check the oil level - If it's slipping is that new box time??

Cheers

Mel
« Last Edit: 17 July 2006, 09:31:23 by sparkybun »
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