Cat In Pipe

[ashleywrx]

My exhaust system has been decatted apart from the one in the up-pipe. I've been contemplating fitting a decat up pipe for some time but seems like a horrible job. I'm planning on getting the car mapped soon and was wondering if it will make that much of a difference with the standard turbo?

[arch]

My exhaust system has been decatted apart from the one in the up-pipe. I've been contemplating fitting a decat up pipe for some time but seems like a horrible job. I'm planning on getting the car mapped soon and was wondering if it will make that much of a difference with the standard turbo?

Makes a big difference and in my opinion should be the first one to remove. When you remove it there is an EGT sensor there which needs to be removed. Unplug the sensor from the loom and put a 2.2k ohm resistor across the plug on the car side. This fools the ECU into thinking the sensor is still fitted by sending a signal proportional to an average EGT, this stops you getting the associated cel light.

[trackhound]

Makes a big difference and in my opinion should be the first one to remove. When you remove it there is an EGT sensor there which needs to be removed. Unplug the sensor from the loom and put a 2.2k ohm resistor across the plug on the car side. This fools the ECU into thinking the sensor is still fitted by sending a signal proportional to an average EGT, this stops you getting the associated cel light.

It is also possible to permanently disable the corresponding diagnostic trouble code on the ECU when you get the car mapped

Cheers

Alistair

[ashleywrx]

Thanks guys. Out with the spanners again then!

[arch]

When the uppipe is all unbolted remove the gearbox to chasis stabiliser bar and the nuts from both engine mounts to subframe and jack the whole engine up a couple of inches that will alow you to withdraw the uppipe.