I got a plug in tuning box about 5 month ago for £20 for my 2003 Passat PD130 est.

TDI/Diesel Tuning Chip PD VW Beetle Bora Eos Caddy Caravelle Fox Eurovan +38BHP | eBay


Yes it did give the desired results 5-7 mpg more upto 60mpg cruising on the motorway with loads more grunt to boot. Then one day the management light came on ok no problem plugged it in and surprise surprise the fuel temp sensor that the tuning plug goes into.

Ok a one off plus £17 later all is well , arrrr well not quite now in the morning when u start the car from cold boy does it smoke and runs lumpy even when its warm now its still smoky and when you give it some beans Christ does it smoke !!!! plus there is such a hit of boost just off idle in the wet it lights the tyres up in 3rd even the Mrs is complaining !!!

Again yesterday the light is on again '****' ok took it off to see what technology goes into theses lol well lets say pics speak for themself ....
















You get the picture didnt really expect anything else really needless to say the car is idling
great with no smoke.

Looks like its time to pay a vist to REVO i think ........ and gets what u pay for lol

 

I've heard that these plug in devices are nothing more than a resistor as your pictures show.

Do you have VAG-COM\VCDS does it show any error codes?

 

Yes ive got the OBDI reader for the vw,s not sure of the code now but its the fuel sensor that the tuing box plugs into.

Yet another sensor fitted and reset the light all is well.

 

If you can find the error code post it or try out my https://volkswagenforum.com/forum/ge...oftware-34973/?

 

Thanks for sharing such a vital information, actually I am looking for information regarding. Now this thread definitely help me a lot.

 

Welcome to the forum ahmadsheikh56.

I'm thinking your a quiet skimmer with your link showing cabin rentals. Please remove this if you which to stay on here?

I will be watching you.