# e-test problems

**URL:** <https://forums.speedlife.net/t/e-test-problems/110451>\
**Category:** SON240sx Automotive\
**Created:** [October 22, 2007, 3:39pm UTC](https://forums.speedlife.net/t/e-test-problems/110451 "2007-10-22T15:39:23Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![240coupe](https://avatars.discourse-cdn.com/v4/letter/2/e495f1/32.png) [@240coupe](https://forums.speedlife.net/u/240coupe)\
**Post date:** [October 22, 2007, 3:39pm UTC](https://forums.speedlife.net/t/e-test-problems/110451/1 "2007-10-22T15:39:23Z")

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Took my car in for e test the first time, it had no egr Failed on Nox passed everything else.

took it in a second time with a hooked up egr , it failed on Hydrocarbons

anyone know what could have caused this? I didnt heat the cat up as much as i did the first time. and the ecu was changed but thats about it.

timing is 18 btdc