This post show you the steps on how to solve Detroit EPA07 GHG14 engine regeneration DOC outlet temperature unable to meet model delay.
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This instruction should only be completed if directed here from Regeneration troubleshooting.
Note:Complete steps in numerical order. If any of the items below have been previously inspected during this visit, do not inspect a second time.
Verification: Verify Parked Regeneration Completes
1.During the above high idle regen, monitor doser fuel line pressure when fuel cutoff valve is 100%. Is the doser fuel line pressure above 275 kPa (40 psi)?
1a Yes; Go to step 2.
1b No; replace the HC doser block assembly. Refer to section
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