ive recently fitted a tuning box yes its off ebay so prob deserve it but got great power increase and alot more torque better fuel efficiency but it was bound to happen emmissions warning light has come on should i just remove the chip and have light turned off is it damaging my sensors

What engine have you got? do you have a DPF?

130 tdi pd elegance

a mate also has same chip in his passat just keeps turning light off

is the diagnostic point 16 pin

I wonder who supplied this unit...

I got one of these off eBay some time ago, from a supplier who at this stage will remain nameless. My project dairy has a link to a detailed review of these things - it's a dead link now sadly but I'll resurrect it and add it in as I'd forgotten the link had died.

Anyway my point was it seemed to break my fuel temperature sensor. I've a 130bhp AWX and this is where it fitted. The supplier denied all responsibility and although he did offer me a refund in the end it was a bit of a battle and he refused to accept responsibility.

Buyer beware. There's no such thing as a cheap remap.

Chip boxes are ****e, all they do is run the car on choke 100% of the time, where ppl get increased economy is beyond me, a remap changes everything, a box just tells the engine to dump more fuel.

Chip boxes are ****e, all they do is run the car on choke 100% of the time, where ppl get increased economy is beyond me, a remap changes everything, a box just tells the engine to dump more fuel.

Usually the computer registers a better rate of consumption with these things. I'm not sure how...

I think it's to do with how they work, i.e. intercept the sensor's signal and change it - the ECU doesn't know and uses the information from the sensors to calculate fuel economy... hence the false reading.

Certainly, that's what I think happened to mine.

ive recently fitted a tuning box yes its off ebay so prob deserve it but got great power increase and alot more torque better fuel efficiency but it was bound to happen emmissions warning light has come on should i just remove the chip and have light turned off is it damaging my sensors

The fuel consumption readings you have are false, because the car does not know about the tuning box. As per the previous post, you are using more fuel because thats how these cheap ebay boxes work. They are a cheap resistor and fool the ecu into injecting more fuel by changing sensor outputs, Whats happened is your car has realised something is wrong, and logged a fault code with the sensor. You can clear the light, but it will come back on again shortly after.