replace kat, no chip tuning; effect???

[jslits]

Hello,

following the discussions on replacing the kat by a pipe my question:

I've replaced the kat on my 1.8T ibiza, but the engine is not chip-tuned (yet). I think it works fine in 1st, 2nd and 3rd gear, but in 4th and 5th it doesn't.

can anyone tell me if this makes sense?

Is replacing the kat by a pipe only useful if it's chiptuned also??

Thanks,

Jaap

Ibiza 1.8T (yellow)
(mostly standard for now, except the kat)

[ibizacupra]

Originally posted by jslits
Hello,

following the discussions on replacing the kat by a pipe my question:

I've replaced the kat on my 1.8T ibiza, but the engine is not chip-tuned (yet). I think it works fine in 1st, 2nd and 3rd gear, but in 4th and 5th it doesn't.

can anyone tell me if this makes sense?

Is replacing the kat by a pipe only useful if it's chiptuned also??

Thanks,

Jaap

Ibiza 1.8T (yellow)
(mostly standard for now, except the kat)

Do you have your check engine light CEL on yet?
Lambda probes connect where now?

If you have a less restrictive exhuast with no cat now, the ecu will not likely be fueling it correctly on standard settings.

Bill