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1-5-4 code

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mc4457
Posts: 70
Joined: 17 Mar 2011, 14:41
Year and Model: 1994 850
Location: San Diego, CA

Post by mc4457 »

What is the most common reason the 1-5-4 code(EGR leak). replace EGR valve? EGR regulator? Vacuum? Hope you guys can help. Thanks
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jblackburn
MVS Moderator
Posts: 14042
Joined: 08 Jun 2008, 15:54
Year and Model: 1998 S70 T5
Location: Alexandria, VA
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Post by jblackburn »

Please don't "bump" things that were just posted.

The EGR is most likely clogged and in need of a good cleaning, or a vacuum hose under the intake manifold is leaking.

https://www.matthewsvolvosite.com/forums ... =1&t=35472

https://www.matthewsvolvosite.com/egr-cleaning.html
'98 S70 T5
2016 Chevy Cruze Premier

A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

mercuic: Long live the tractor motor!
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