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Hi... could anyone help us out... have a mk2 vr6 with a 96 engine in... it has a cable led throttle body so im guessing its an OBD1 but I thought they ended late '95??! any ideas on how I can check to find out which one it is?? Plus has anyone fitted VDO gauges for the centre console to their mk2 vr6, if so what senders are required?? cheers

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oh shit' date=' i've just ordered a odb2 suprcharger kit, can someone please tell me if my highline is odb2 or odb1, its got square indicators too. pic will be posted in a sec.

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If it has square indicators theres a good chance it obd1... pic of the engine is needed though

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only if it says highline on the log book?

that it does sir ;) i am lucky i suppose my vr6 is exactly on the change over so i must have one of the last vr6's with a OBD1 especially on a highline!!!!! !amazed

Why is that lucky? if anything the obd2 is slightly better... also early highlines iirc didnt have quite the same level of trim as the later ones ;)

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are you sure its odb1? i'll have to ring my supercharger guy up to change the details

as an ODB1 what do i have to worry about, i've always thought it an ODB2 so the tensioners need doing at 80k. But i've always ignored odb1 posts and schricks!!!! ggrrrr, i even cancelled my bid for evil's schrick becuase it was odb1...what a fuxxor.

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only if it says highline on the log book?

that it does sir ;) i am lucky i suppose my vr6 is exactly on the change over so i must have one of the last vr6's with a OBD1 especially on a highline!!!!! !amazed

and also nerih yes yours is 100% OBD1

Why is that lucky? if anything the obd2 is slightly better... also early highlines iirc didnt have quite the same level of trim as the later ones ;)

im lucky as its rare and explain to me why the OBD2 is better???? and my trim looks exactly the same as ay other highline...

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The best way of telling is to look at the throttle body from the driver's side. If it has a large black sensor on it, it's OBD2. (taken from this forum, and it doesn look like its got a big sensor on it)

The OBD 1 engine has far less emmisions controls and therefore is less restricted, but the reason it is said to be a more powerful and preferable engine to an OBD 2 is mainly due to it's construction. The OBD 1 engines were built a little better with forged crankshafts, heavier duty valve springs and retainers, and other such subtle, but effective changes

(vwvortex forums)

the main differenced between OBD1 and OBD 2 are emmisions controls.

The OBD 2 engine has addition control devices (post-cat o2 sensor, charcoal canister, etc.) that technically make it slower due to more restrictions on emmisions. However, it should have better throttle response than OBD 1 due to updates in the software and TB/intake manifold changes.

The OBD 1 engine is also easier to mod due to less emmisions and ECU software restrictions (i.e. less CELs from modding) and should produce slightly more power stock

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