# 01 Explorer Sport Trac EGR Insufficient Flow

**URL:** <https://community.cartalk.com/t/01-explorer-sport-trac-egr-insufficient-flow/27428>\
**Category:** Maintenance/Repairs\
**Tags:** ford\
**Created:** [March 7, 2009, 8:34pm UTC](https://community.cartalk.com/t/01-explorer-sport-trac-egr-insufficient-flow/27428 "2009-03-07T20:34:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Sappie](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@Sappie](https://community.cartalk.com/u/Sappie)\
**Post date:** [March 7, 2009, 8:34pm UTC](https://community.cartalk.com/t/01-explorer-sport-trac-egr-insufficient-flow/27428/1 "2009-03-07T20:34:27Z")

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I have replaced everything on the EGR system, have cleaned the MAF and other things with Total intake system cleaner and I can still not get the check engine light to go off and the code is always EGR insufficient flow. What else do I need to do? I need help really bad because I can’t pass the mandatory emissions testing.

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**Author:** ![Sappie](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@Sappie](https://community.cartalk.com/u/Sappie)\
**Post date:** [March 7, 2009, 8:47pm UTC](https://community.cartalk.com/t/01-explorer-sport-trac-egr-insufficient-flow/27428/2 "2009-03-07T20:47:08Z")

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I forgot to mention that this is a 4.0 L V6 with 160,000 miles on it. Nothing else is wrong with it and this isn’t even causing any problem. Maybe just a slight rough idle is all.

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**Author:** ![blackdiamond](https://avatars.discourse-cdn.com/v4/letter/b/9f8e36/32.png) [@blackdiamond](https://community.cartalk.com/u/blackdiamond)\
**Post date:** [March 7, 2009, 8:51pm UTC](https://community.cartalk.com/t/01-explorer-sport-trac-egr-insufficient-flow/27428/3 "2009-03-07T20:51:29Z")

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The DPFE sensor is a common problem with this system or the tubes leading to and from the sensor.