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They do seem to work but the one I tried created other problems like over fuelling. They do seem to be a bit of a blunt instrument in my thinking. All they do it modify signals to the main ECU from the various sensors which keep the engine running within spec.
Not sure if it helps, but I wouldn’t use a tuning box again, but I’m too lazy to get the car remapped properly.
Not sure if it helps, but I wouldn’t use a tuning box again, but I’m too lazy to get the car remapped properly.
AVI_8
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Personally I wouldn’t, both of mine are remapped.
A box plugged in to fool the ecu to make the turbo to produce more boost without modifying other parameters is a bit too risky it’s hard enough to prevent fault codes with all of the emission crap fitted these days
What car is it for
A box plugged in to fool the ecu to make the turbo to produce more boost without modifying other parameters is a bit too risky it’s hard enough to prevent fault codes with all of the emission crap fitted these days
What car is it for
Gareth J
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I looked into it a while back. There are tuning boxes and tuning boxes. Some, that plug into obd port, do nothing. Some take the signal from one sensor (usually fuel rail pressure) modify it so the rail becomes over pressurised and therefore, when an injector opens, more fuel is delivered. Brutal but effective. And some that do alter a lot of parameters and achieve a more refined tune. But they're expensive and were comparable to a remap.
Trevorleach
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Get what you pay for, they do work as I have had a few over the years.
Had a plug in chip on one, then got it properly remapped, the difference was splitting hairs.
Just remember to get more power you need more fuel and more air, box or remap will alter both.
Had a plug in chip on one, then got it properly remapped, the difference was splitting hairs.
Just remember to get more power you need more fuel and more air, box or remap will alter both.
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They have to map them to average across different climates, fuel quality, driving styles etc. to give best economy and emissions so you are better off getting it remapped to suit you, whether it's performance, economy, towing etc.
So would you rather give your cash to some oik thats played with a lap top and messed about with a fuel map spread sheet than stick to the guys who designed and built the thing in the first place ,,
There are some of the big chip / map sellers that claim all sorts of things and have great adverts and fantastic websites etc ,, but ,, if they could do half the things they claim wouldnt the manufacturer just do these too and claim more power / better acceleration / more economical etc etc , after all its as easy for them to adjust the map to suit the point of sales as it is the tuners to do it later. The trend at the moment round here is for small diesel cars to put out clouds of black smoke ,, they call that chip tuning too .
mtt.tr
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They are tuned for efficiency and emmisions, but they are not lookup tables, modern cars are adjusting trims live dependent on sensor feedback
mtt.tr
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Yes this no smoke no poke nonsense, unburnt fuel is unused potential
Is this not a thread for @premmington to inform the OP.
8ob
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And so many do, most remaps and chips are bought by the lead foot brigade. I know of many that have gone bang, driven carefully they are ok but not may folk that have these things chipped or remapped do that.
Bob
Chipping diesels for more boost and fuel works, if the map is a good one. But, if you expect to use that boost all the time, don't be suprised if the turbo cries enough. I know someone who did just that - one nights playing was all it took..
premmington
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I am as anti Mapping as I am anti "tuning boxes".
If you wanna go quicker/faster - just buy a faster car with a bigger engine to start with.
The only plus for a tuning box - is you can get it off quickly to do diagnostics when things go wrong.
premmington
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+1 for the above in bold.
Barking Mat
Cuddler of hedgehogs.
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Any modern common rail turbo diesel vehicle I've driven in the last ten years gos plenty fast enough for me.
Last thing I'd do is try to squeeze more power out of it at the risk of compromising its reliability.
Last thing I'd do is try to squeeze more power out of it at the risk of compromising its reliability.
65 Mpg I got out of my 2.0 litre passat estate going to Bristol Airport yesterday.
Good enough for me.....
frank horton
V twins are great but 4"s rule.........
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my 2002 sprinter had one......def got better mpg by about 15% and more power....
for example on hill on the auto route I'd have to change from 5 to 4th.....
after the little box was fitted it'd go up in 5th.....
I was driving from Bodaux to the UK every 2 weeks....
the very latest cars / vans I believe have to be ramapped at the ecu....
for example on hill on the auto route I'd have to change from 5 to 4th.....
after the little box was fitted it'd go up in 5th.....
I was driving from Bodaux to the UK every 2 weeks....
the very latest cars / vans I believe have to be ramapped at the ecu....
