MK3 Random Thread

[HaydEn]

42dd o2 sensor spacer.

[patmould93]

Don't tell the EPA

[Juzzpc]

so can I just smash out my cat no worries?

[Bug_racer]

Wtf. I have an obd2, doesn't have a post cat 02 sensor. What year is your car? Ever had the ecu out and know the code?

The second o2 sensor is normally only for emissions, why do you want to unplug it though?

You don't have OBD . If you did you would have 2 lambda probes and a working engine light !

[Bug_racer]

so can I just smash out my cat no worries?

What for ? The gains are minimal on a n/a car

[cliftronix]

You don't have OBD . If you did you would have 2 lambda probes and a working engine light !

Can someone explain what it means to have odb? My vagcom says different.

[cliftronix]

What for ? The gains are minimal on a n/a car

Vr crackle is worth more than gainz.

[Juzzpc]

Vr crackle is worth more than gainz.

+1 to that

[stefcio007]

Can someone explain what it means to have odb? My vagcom says different.

I think he's being sarcastic, as in if you had OBD then your car would be telling you everything that is wrong with it.

Anyway, OBD is On-Board Diagnostic. It's supposed to be a standardised way for you to be able to read error codes and stats externally. Except with OBD1 it wasn't really standardised...
Post 1995 MK3s and they started fitting them with OBD2 and the new actually standardised connector which is still used today on pretty much all cars.
Some MK3s got the new connector but were still OBD1 on the inside which has led to lots of confusion on the internet.

OBD2 cars also got more sensors to detect more things that could go wrong, which is supposed to be a good thing, but more sensors means more error codes to deal with when you get them and more sensors that stop working in the future.

Edit (bonus);
The thing with OBD2 is that many ports on cars these days let you control basically every single function of the car. This is a problem because there is basically no security on this port and someone could maliciously attach a module and remote control the car's functions. Of course, they would need physical access to the car and get the thing on in the first place.
Many cars now even have mobile data cards in them so that you can control these functions using your phone or watch. Hopefully this method has been setup securely but nothing is bulletproof these days.

[BurgundyMk3]

OBD2 came along as a standardized regulation of emissions as they were becoming more and more strict.

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[any001]

so can I just smash out my cat no worries?

The exhaust fumes will be horrid. A mate of mine did this and his wife cracked the ****s with him. It stunk so bad.

[Juzzpc]

The exhaust fumes will be horrid. A mate of mine did this and his wife cracked the ****s with him. It stunk so bad.

doing it anyway

[stefcio007]

doing it anyway

No wife, no problem?

[Juzzpc]

No wife, no problem?

+1 no wife no worries [emoji482]

[Juzzpc]

I want to get a 42dd O2 sensor spacer but in the mean time will i throw a cel if I punch out the cat without the spacer?