Does anybody purchase HPA downpipe??

[MonkeyMD]

Here's a link someone shared with me that has some good info. Not sure how handy you are.

https://forums.vwvortex.com/showthr...h-flow-CAT&p=113508695#/topics/9327797?page=1

 

[kornsined]

Never found a fix. Eventually went Eqt stage 2 tune and unlugged the secondary o2 altogether.

 

[DasWaX]

Never found a fix. Eventually went Eqt stage 2 tune and unlugged the secondary o2 altogether.

Welp...Looks like IF you have emmisions testing you'll need to swap back to your OEM DP for passing emissions tests...Thanks!

 

[kornsined]

Welp...Looks like IF you have emmisions testing you'll need to swap back to your OEM DP for passing emissions tests...Thanks!

Something we don’t deal with up here. If it is an issue I would swap for a dp that guarantees no cel. Not worth the hassle of swapping the stock dp every time.

 

[DasWaX]

Something we don’t deal with up here. If it is an issue I would swap for a dp that guarantees no cel. Not worth the hassle of swapping the stock dp every time.

If you unlugged the secondary o2 altogether, don't you always have a CEL present? I know Stg2 should take off certain codes, but if you unplug the 02 sensor all the way I would think a CEL would always be on.

 

[Navi]

yes, you do get a CEL

 

[kornsined]

If you unlugged the secondary o2 altogether, don't you always have a CEL present? I know Stg2 should take off certain codes, but if you unplug the 02 sensor all the way I would think a CEL would always be on.

It’s a recommendation through Eqt. On Cobb it’s an issue that richens the afr. There Is a cel but it doesn’t show on the dash, just through scanning.

 

[jimlloyd40]

It’s a recommendation through Eqt. On Cobb it’s an issue that richens the afr. There Is a cel but it doesn’t show on the dash, just through scanning.

There's only a CEL if the check engine light is on. You're talking about the readiness state for passing emissions.