Tuning box HDI 110 C5

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jgra1
(Donor 2021)
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Tuning box HDI 110 C5

Unread post by jgra1 »

all, brought a tuning box from someone on here(was in for sale section)
Have a longish journey over weekend, would be good to fit it before I go..

where should I stick it? :mrgreen:

The is jsut a 3 pin male and seperate female connector - just need to know where to put them..
seems there is a plug going into the fuel rail , underneath it.. could this be the place..
would be bad to disable the car by getting it wrong..

John
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RichardW
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Re: Tuning box HDI 110 C5

Unread post by RichardW »

I think that's the one John - the box just modulates the signal for the rail pressure to the ECU - this gives a higher rail pressure and therfore more fuel for a set opening time = bigger bang and more go. I sure read about Paul doing it - releasing the connector was not to hard, putting it back, on the other hand :twisted:
Richard W
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jgra1
(Donor 2021)
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Re: Tuning box HDI 110 C5

Unread post by jgra1 »

hehe thanks Richard..

will throw it on later and report back...

device has 10 settings, and another button which is green / red toggle..
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citroenxm
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Re: Tuning box HDI 110 C5

Unread post by citroenxm »

I have a box on my HDi, however, its NOT a rail pressure fooling device. Not sure which is the best sort.

The box I have connects to the battery + and - terminals, and theres a harness that then connects inbetween the cars injector plugs and corresponding injector plug. A little like an LPG sequentail harness on an injected car.

Its been on for 90k now and had no issues at all ..

Can you post a good pic or two of your box John, might help diagnose connection. The connection to the fuel rail sensor which is the sonsor pointing downwards, should be three Pin..
Sharing a pug 207 1.6 hdi Sw 16v.
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project

A very sad...
1994 XM 2.1 d auto
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jgra1
(Donor 2021)
Posts: 4625
Joined: 27 Nov 2005, 19:07
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Re: Tuning box HDI 110 C5

Unread post by jgra1 »

fitted ., what a pig getting the 3 pin back in.. headtorch and dark.. but took 20 mins to throw it on..
will tidy tomorrow#

set on 10, and with the light set to green not red, it is a noticeable difference.. especially from 1500 -2500.. get a real kick in top 4 gears.. 1st serves no purpose anymore really... not that I ever used it much
will see what economy it does on a run to Dorset tomorrow
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addo
Sara Watson's Stalker
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Unread post by addo »

How's its fuel habit now?
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jgra1
(Donor 2021)
Posts: 4625
Joined: 27 Nov 2005, 19:07
x 36

Re: Tuning box HDI 110 C5

Unread post by jgra1 »

last night , 2.5 hours constant motorway at up to 90mph.. 3 adults and dog and boot full.. 47.1mpg,, which seems the same as always :)
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