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PKRWUD · 09-21-2001, 06:43 PM

The EVP is the Egr Valve Position sensor. It is standard practice to replace the EGR and the EVP at the same time, and unless you're broke, it's a good idea.

HiFlow50 has a very good point concerning the IAB code 411. Try replacing the EGR & EVP first, and then clear and retest for codes, both KOEO & KOER (the 411 test is not performed during KOEO). If there's no code 411, you're done. If it does come back, replace the IAB.

Take care
~Chris

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Retired Moderator
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09-21-2001, 06:43 PM	#5
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	The EVP is the Egr Valve Position sensor. It is standard practice to replace the EGR and the EVP at the same time, and unless you're broke, it's a good idea. HiFlow50 has a very good point concerning the IAB code 411. Try replacing the EGR & EVP first, and then clear and retest for codes, both KOEO & KOER (the 411 test is not performed during KOEO). If there's no code 411, you're done. If it does come back, replace the IAB. Take care ~Chris ------------------ Retired Moderator MustangNet My site: JimPorterRacing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!