APR DP and CEL?

bdlPNW said:

Got it thanks!


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AtlantaDad said:

Yeah it may flow both ways, but the o2 sensor should come after the main body of the cat, not before. Could make a difference if that section was installed backward.

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scrapin240 said:

The JB4 will not clear the CEL right now.
The APR DP will almost certainly throw a CEL.
This spacer with the middle collector has been CEL free for me.

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Davespeed said:

Which insert did you use? I have an APR DP, JB4, and elbow spacer. More often than not CEL pops up.

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bdlPNW said:

Hey Scrapin, got the spacer but no idea what to do with these small parts. Any advice? Thanks!

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scrapin240 said:

IIRC in the end that screws into the DP, you will use the spacer in the middle, the second row on the right of your pic.
Then you take the black snap ring and place in the groove so that medium collector stays without falling out. Be careful with the snap ring just because it's small and has some tension when you try to squeeze it in there, so you don't lose it.
Then use the gold washer on the on the DP side, and just angle it so it doesn't hit the body of the car and you'll be good to go, and CEL free.

And Thanks for buying a DP with a cat!

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scrapin240 said:

IIRC in the end that screws into the DP, you will use the spacer in the middle, the second row on the right of your pic.
Then you take the black snap ring and place in the groove so that medium collector stays without falling out. Be careful with the snap ring just because it's small and has some tension when you try to squeeze it in there, so you don't lose it.
Then use the gold washer on the on the DP side, and just angle it so it doesn't hit the body of the car and you'll be good to go, and CEL free.

And Thanks for buying a DP with a cat!

Click to expand...

scrapin240 said:

IIRC in the end that screws into the DP, you will use the spacer in the middle, the second row on the right of your pic.
Then you take the black snap ring and place in the groove so that medium collector stays without falling out. Be careful with the snap ring just because it's small and has some tension when you try to squeeze it in there, so you don't lose it.
Then use the gold washer on the on the DP side, and just angle it so it doesn't hit the body of the car and you'll be good to go, and CEL free.

And Thanks for buying a DP with a cat!

Click to expand...

bdlPNW said:

Ok so I think from this point the black snap ring goes next then pick one spacer to sit onto of the snapring then leave one spacer out right? Which spacer do I use? Big hole or little one?

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bdlPNW said:

Ok I think I got it. Just need one spacer and put the black snap ring to hold it in place. Now I wish I had the right tool to get that snapring in [emoji53]


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doublej said:

I had a cel with the APR DP and APR stage 1 tune. I just got stage 2 yesterday which obviously compensates for the dp and removes the cel condition.

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AtlantaDad said:

Yeah it may flow both ways, but the o2 sensor should come after the main body of the cat, not before. Could make a difference if that section was installed backward.

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Crudulous said:

Awesome. Do you know what the o2 readiness shows now? Did stage 2 make it "unavailable"? Reason I ask is I'm contemplating the APR DP but wondering how it affects my OBD based smog checks.

The answer man!!

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