Reduced power and codes caused by exhaust valve deletion

[m5james]

I was hoping someone could take the time to take pics and document for me the routing of the rubber lines going from the exhaust flapper valves to the control box (wherever it is exactly since realoem.com is vague) so that I can attempt to resolve my 310B, 2ABC and 2ABE codes, which as best as my tuner and I can tell are leading to a boost/vacuum leak. At some point the PO of my car removed the muffler, put it back on but didn't reconnect the valves and I cant find the lines to save my life :-)

While I didn't know exactly what I was looking at, I had noticed in the ads that the inner tips were spotless and the outers were black. The day I bought the car (Sunday afternoon from a Jeep dealership 4hrs from my house) I'd noticed the vacuum lines weren't there, I'd remembered about reading here how people ziptied them open, so I did just that and hadn't thought about it again...until now since I'm running a Stage 2 tune and getting codes. Some pics and maybe even someone documenting the routing all the way to the vacuum sensor would be awesome.

[peter91118]

I'm installing dp's on Sunday. I will try to get an answer for you.

[m5james]

I gutted my stock cats when I replaced all my injectors...DP's is a fun job :-)

[peter91118]

That was actually my original plan, however, I want to have the ability to swap back to stock if need be.

[m5 guy]

If you get under the car and look behind the diffuser you should see the line. It runs the length of the rear then up to a controller on the driver side if I remember correctly. There should be two little lines that come out from the main line and attach to the oem valves on the inner pipes. Should be easy enough to spot and trace from there.

[m5james]

I think the PO or whoever did the work removed all the lines, but my concern is that I don't think they capped anything off. Those codes relate to boost pressure issues, pre and post tune I only hit 17.4 and randomly get the reduced power warning w/o getting a CEL as well. I backed the truck up onto ramps Friday night, looked around with a flashlight and I don't see anything that would point out routing of these runner lines, RealOEM only shows a rough location of the sensor itself, so I can't even determine if the sensor is outside the car or inside the truck area after removing the battery cover and a panel(s) of the drivers side.

[peter91118]

I think the hose my index finger is on is what you want to plug. It comes off the back of the passenger side vac canister. I haven't confirmed this but it is the only vac hose heading toward the rear of the car i can see

[m5james]

Interesting...I'll look at it. Could I bother you to see the routing from the exhaust vavles to wherever they feed to without you having to take anything apart?

How are you looking the downpipes?

[peter91118]

Originally Posted by m5james

Interesting...I'll look at it. Could I bother you to see the routing from the exhaust vavles to wherever they feed to without you having to take anything apart?

How are you looking the downpipes?

On second inspection I dont think that is the hose you are after. I looked quickly under the rear but couldnt find anything. I think the hose goes immediately behind the heat shielding after connecting to the exhaust. Unfortunately, i think you are going to have to pull the entire exhaust off to get the heat shields off, so you can have a look.

Downpipes are in though! Too bad that wont satisfy the mod bug for long...

[Dawgz]

Originally Posted by m5james

Interesting...I'll look at it. Could I bother you to see the routing from the exhaust vavles to wherever they feed to without you having to take anything apart?

How are you looking the downpipes?

Did you locate these at the end, where does that hose connect to in the engine bay?