Re: Re: another mug!
Big time BAD IDEA if you ask me.
So, you've fooled the ECU into thinking the incoming air is cold. wow....
That means that you will have slighty less dense air than the ecu thinks you do, so will have the wrong AFR (slightly rich), and get better performance (possible)
There are some possible issues with this:
1) the lamnbda sensor fitted to you car wonders what the fu*k is going on , and the ecu puts less fuel in to compensate for a rich mixture.
2) if 1 does not happen, and you are driving along happily enjoying the 'rush' of performance ?! and you are on the motorway, everything is nice and hot (incl catalyst), but the only problem is that you are dumping much fuel into the cylinders. This might lead to slight issues for the catalyst.
3) the exhaust port temperatures may already be marginal for this engine (how would you know otherwise - were you there on the test bed doing the calibration?), and you making them a little hotter could lead to valves melting. Sounds expensive.
And on the subject of calibration. Why would FIAT bother to spend millions of EUROs working on the calibration, if there was extra 'power' to be had for free....
There is an argument that there is some slack 'built in' to the calibration for poor fuel, and engine to engine variation etc. This is partly true. However, how do you know that your engine is perfect? How do you know that the fuel you use is the optimum? If you have a 1.8 or 2.0 engine youhave selective knock contol anyhow, so the engine will adjust around KBL for itself, so the fuel grade will be automatically compensated for.....
Anyhow, please go ahead and fit this device, and let me know if it works. I just hope that you have plenty of money to spend on the new parts that you will need, or don't intend on keeping the car for long.
BY the way - resistors of the type you have bought for £5 can be had for about 4p each from an electrical store. It seems that the only one getting a performance upgrade will be the guy who sold this to you ----- in his bank balance.....
PS. Most diesel 'tuners' use little boxes with resistors in them to alter the engine performance. Some even have the cheek to say that they can 'adjust them' to suit the car (variable resistor then...).
Then they charge the customer £300 to £500 for it....