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i found on ebay today that u can buy a five dollar resistor chip that will work with your ecu and will produce 20 extra horsepower has any body tried this.

You might try being a bit more specific as to what type of resistor, where it is placed, and how it is set.

Now hold on a minute Danible......I know for a fact that a 1.5K pot on a VW TDI engine will do this. It is placed between 2 wires on the IP. It tricks the ECU into thinking that the engine is not getting enough fuel, and basically overfuels it. But a diesel engine works just a little bit different than a gas engine.

If you don't believe me, just go search www.tdiclub.com for the EVRY Mod.

 

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But still, hacking/splicing into the wiring harness would surely void the warranty.