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Old 01-05-2020, 09:54 PM   #1
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Default P0401 P0405 P1404 codes

My Saturn SL two 1999 model is throwing three codes P0401, P0405 and P1404. Need help any suggestions thank you

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Old 01-05-2020, 10:17 PM   #2
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1999 SL2
1998 SC2
Default Re: P0401 P0405 P1404 codes

Use these search strings:
site:www.saturnfans.com P0401
site:www.saturnfans.com P0405
site:www.saturnfans.com P1404

The good news is they are all EGR codes. Have you pulled your EGR off and cleaned out the the carbon?

...
Bryan Cotton
'99 SL2, 5SP bought new
Rebuilt at 204,067 September 2017
Engine, subframe, diff pin mod, brake lines, headliner, alternator, and so on!
'98 SC2, 5SP bought 2018

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Old 01-05-2020, 10:40 PM   #3
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Default Re: P0401 P0405 P1404 codes

I replaced the EGR valve 1 year ago but have not taken this one off. 2 weeks ago I cleaned the throttle body with sea foam spray and couldn’t believe the smoke. Car has 162000 miles have owned it for 20 years

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