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Old 04-10-2019, 09:10 AM   #1
collinmaune

Name: collinmaune
Title: Green Behind the Ears
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Code U1421 after delete can I clear?

Just deleted my 2013 this past weekend and this morning the check engine light came on the code is u1421. I had the shop put EFI live and I did the the egr delete. Can I clear the code with my handheld Bosch scan tool or will it mess up the EFI live tune? I have read the code is just a impulse communication and can be cleared but i don't want to lock up my truck.
 
Old 04-10-2019, 10:02 AM   #2
sootie

Name: sootie
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since when has clearing codes had any effect on a tune thats already flashed to the computer?
 
Old 04-10-2019, 10:05 AM   #3
collinmaune

Name: collinmaune
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I wouldn't think it would have any effect but I was wanting to check since it was a code that is relating to the communication between the modules.
 
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