FCV elbow

[jaffazoom]

Would have got it off of you had I known but bought one of ebay UK.

I might be chasing the EGR pipe depending on what I can do with the current pipes to make the EGR look functional.

Also after a transmission skid plate other wise I'll fabricate my own, don't like the engine oil filter sticking out unprotected like it is.

Definitely after the heat shield that protects the crank angle sensor but not sure if the ealier model is the same as the 05 engine.

I'll keep you in mind if I'm c.hasing something next time.

Thanks cmohr

[glend]

If your running the GDE tune you don't need to worry about the rear engine egr pipe. Mine has been off for years. Just block the exhaust manifold port with a coin inserted into the flange clamp. My old egr pipe was cut down to become my blow off valve pipe. The EGR valve, under the GDE tune, retains the compressor blow off function, but never opens for any other reason, so conversion to a blow off valve is easy and it sounds so nice when it vents.

[jaffazoom]

EGR will be blanked off , just trying to make it look like the egr is still connected by running the pipe around the back.
So your saying your turbo vents off quite a bit with GDE tune , I thought they say it only does it if you are boot in and spooled up and suddenly back off as the only time the GDE tune blows off through the EGR.

Interesting, makes me wonder if there is a real chance of damaging the turbo without the EGR valve in place.

[glend]

Originally Posted by jaffazoom

EGR will be blanked off , just trying to make it look like the egr is still connected by running the pipe around the back.
So your saying your turbo vents off quite a bit with GDE tune , I thought they say it only does it if you are boot in and spooled up and suddenly back off as the only time the GDE tune blows off through the EGR.

Interesting, makes me wonder if there is a real chance of damaging the turbo without the EGR valve in place.

OK, the stock software has that spooling up overboost bleed function in it as well, in fact that is the only part of the EGR function that GDE retains (the rest of the EGR valve opening programming is deleted by GDE). With just the stock software, the EGR is used to bleed the spooled up overboost into the exhaust (via the round the back engine pipe), but it also opens the EGR at al sorts of times to inject all that crap from the exhaust into your inlet plumbing (hence the oil mist, particulate matter lines your intake body, FCV, etc.)

If, and only if, your running the GDE software, you can easily convert your EGR valve to just dump the spooling overboost to the atmo, just don't block off the EGR valve exit port (in my case I have kept a little short (2") stubby section of the original pipe to direct the pressure away). I cleared this with Keith at GDE before I tried it. BUt obviously if your running stock stock software, or potentially other non-GDE software, any chance of that EGR valve being opened (when not bleeding spooling overboost) is going to ruin your drivability by potentially causing lost of boost at other times.

[glend]

Just one further comment on EGR on CRDS. I highly recommend avoiding the 2005 CRDs, they were the only year Jeep used electric EGR valves, and they are notorious for hard to diagnose driveability problems, getting stuck and failing completely. In 2006 and 2007 Jeep returned to the vacuum operated EGR valves in the export models (which we got), as they are very reliable and not subject to heat breakdown like the electric ones are.