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Old Jun 17, 2017 | 11:54 AM
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Sdthrl53's Avatar
Sdthrl53
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From: midwest
1994 SL 320
code 2944
My E320 Bluetec has the check engine light on with these two codes: 2943 and 2944. Says on the scanner "undocumented code" . Any ideas?
Last edited by Sdthrl53; Jun 17, 2017 at 12:11 PM.
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Old Jun 19, 2017 | 09:42 AM
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marc hanna's Avatar
marc hanna
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From: Nova Scotia, Canada
2023 GLK250, 1987 560SL
P2944 is a fuel/air intake issue, and 2943 is an EGR issue.

This could be caused by a few things.

Stuck EGR
Plugged intake manifold
plugged DPF
Bad pressure differential sensor
defective sensors

Is the car running normal, or are there some other symptoms?
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