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DCM 3.5 egr with plug disconnected
11-09-2026, 10:56 AM, (This post was last modified: 11-09-2026, 10:58 AM by jenny123.)
Post: #1
DCM 3.5 egr with plug disconnected
Hi all,

Can you help me remove EGR with plug disconnected?
Attached file is dpf and egr off but valve electronic is burned.

Ori attached as well.

When plug is connected, after a shot drive car gets P00BC and goes to limp mode, with plug disconnected car drives fine but on dash CHECK Engine, but no DTC in ecu..

Deleted P00BC removes fault but car is in limp mode.

One more thing. With plug disconnected I can remove fault and it will be away from dash until next engine start.


Attached Files
ford dcm3.5 egr.zip
File Type: .zip
Downloaded: 7 times
Size: 211.5 KB


Always happy to help biggrin
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11-09-2026, 11:10 AM,
Post: #2
RE: DCM 3.5 egr with plug disconnected
Try and report PM for pass after THX+REP
DPF pressure and temp sensor disconected EGR disconected


Attached Files
Ford Galaxy 2.0tdci 140@163bhp_DPF-EGR-_NoChk).bin.zip
File Type: .zip
Downloaded: 2 times
Size: 101.78 KB

Reputation: +2 - jenny123 [+1] , dabaca [+1]
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[+] 2 users say Thank You to ptalev for this post
12-09-2026, 04:21 AM,
Post: #3
RE: DCM 3.5 egr with plug disconnected
Report - file works and there is no error from EGR or DPF, but P00BC comes back even when plug is disconnected.
Spend last night in the garage with 2 MAF and fog machine. I found a leak at the second joint downstream of the flow meter, but the system is now sealed and leak-free.

Try remove P00BC and test if catch limp mode.

Thank you ptalev

Always happy to help biggrin
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12-09-2026, 05:15 AM, (This post was last modified: 12-09-2026, 05:29 AM by ptalev.)
Post: #4
RE: DCM 3.5 egr with plug disconnected
(12-09-2026, 04:21 AM)jenny123 Wrote:  Report - file works and there is no error from EGR or DPF, but P00BC comes back even when plug is disconnected.
Spend last night in the garage with 2 MAF and fog machine. I found a leak at the second joint downstream of the flow meter, but the system is now sealed and leak-free.

Try remove P00BC and test if catch limp mode.

Thank you ptalev

Get fuli error P00BC:...... and 4digit  more 
P00BC is low air mass flow ?
Check Maff sensor , plug for maff and wiring
If you want try with dtc off or other solution
pass is same


Attached Files
DCM3.5DpfEgr.zip
File Type: .zip
Downloaded: 3 times
Size: 203.65 KB

Reputation: +1 - jenny123 [+1]
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[+] 1 user says Thank You to ptalev for this post
12-09-2026, 06:36 AM,
Post: #5
RE: DCM 3.5 egr with plug disconnected
Full Error Code: P00BC:64-27

More tests in the evening, currently @work.

Always happy to help biggrin
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14-09-2026, 05:28 AM, (This post was last modified: 14-09-2026, 13:22 PM by jenny123.)
Post: #6
RE: DCM 3.5 egr with plug disconnected
Tested ''other solution'' and same fault P00BC64-27
Currently written map with DTC off, but didn't drive yet on this one.

Tested on 2 MAF sensors (second one from my brother in law Mondeo MK4 same engine). My MAF woks fine on his car and his MAF perform same fault like on my sensor.

There is any possibility to MAF OFF on DCM3.5?

EDIT:
EGR is blanked with plate coz valve is blocked in open position. Now I have 2 ideas, or remove MAF, or remove EGR, close it and replace electronics with working one.

EDIT2:
First solution with P00BC removed work fine, no limp mode, but P1305:84-2F, P1305:91-2F and P1305:00-2F pops up. Looks like this one is similar to my first dpf and egr off. After ignition errors pops up, Im able to delete it, but comes back after ignition. Without P00BC deleted, I was able to delete P1305 and never reappears.

Always happy to help biggrin
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18-09-2026, 05:13 AM,
Post: #7
RE: DCM 3.5 egr with plug disconnected
Solved! Solution sent to ptalev.

Always happy to help biggrin
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