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JK Wrangler CRD EGR disabling.  RSS feed
Forum Index » Recommended Mods for Longevity
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josh9465

Joined: 28/04/2016 20:59:12
Messages: 2
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Hi have a 2009 JK WRANGLER 2.8 CRD so the R428 engine.

I have been told that you must NOT disable the EGR on this engine as it acts to prevent over boost for this engine.

So disabling the EGR will cause an over boost and possibly blow up your engine.

Is this true??

I thought the EGR was purely for emissions reasons.
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 353
Location: Southeast Michigan
This depends on how the tuner turns off egr. We turn it off in normal driving, but still leave the surge protection active to bleed off excess boost on throttle tip outs. In this manner, this is no risk to the engine or turbo.
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josh9465

Joined: 28/04/2016 20:59:12
Messages: 2
Offline
If the EGR was physically disabled. Is there a risk of excessive boost.
GreenDieselEngineering
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Joined: 10/07/2009 07:25:47
Messages: 353
Location: Southeast Michigan
Not with a good tune. There would be no risk.
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