running lean?

[jtanguay]

I just had the catylitic converter gutted on my jetta ecodiesel. It runs ALOT better, maybe too good. It runs a little bit warmer, and since it is td motor with a NA pump  I was thinking it might be leaning for some reason. could gutting the cat on my eco lean it out?

Like they all said, a diesel is always lean - we control power (aside from boost on some engines) by controlling how much fuel is injected... so, less fuel, less power. If your Cat is plugged, you'll have excessive back pressure which means less clean air in each combustion cycle, so less power and less heat because there is not as much air to burn the fuel.

This might sound dumb but I didn't know these 1.6's even had catalytic converters, I didn't think diesel would work with a catalytic converter and just kill the workings of it :oops: All mine have just had a resonator and a muffler :shock:

i've never heard of a 1.6 with a cat.

[Jettage1]

Sorry to be a doofus, but to gut your cat, didn't you have to cut it out of the system & then weld it back in??  I assume it's not just bolted in with clamps.

(I know, I have one of my own to look at, but it's nowhere near a lifting device and won't be for most of the week... ) :roll:

[vanbcguy]

On my Mk III it's clamped in... In fact the whole factory exhaust is held together with stainless steel clamps.  Can't say what's on the Mk I / II cars but VW has a habit of keeping things the same...

[jtanguay]

All the 1.6 ECOdiesels had cats.

Andrew

ahhh... keep forgetting about those poor excuses for turbodiesels  :lol:

[arb]

All the 1.6 ECOdiesels had cats.

Andrew

ahhh... keep forgetting about those poor excuses for turbodiesels  :lol:

;-)  We're looking for high mpg, not high E.T.'s


(race talk, not exhaust temp)