'97 E420 P0410 code
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 16
Likes: 0
From: North County San Diego
1997 E420, 1997 E420 Sport and 1990 300CE
'97 E420 P0410 code
Guys,
Need some real help with this one. I have had this code for about 4 months. The secondary air pump is working. I have replaced oxygen sensors on both bank 1 and 2. I have replace the check valve, switch over valve and the plastic nylon hose and connectors. Indie says the head ports are clear and working.
What the heck else could this be??
Should I try using some Seafoam?
Need some real help with this one. I have had this code for about 4 months. The secondary air pump is working. I have replaced oxygen sensors on both bank 1 and 2. I have replace the check valve, switch over valve and the plastic nylon hose and connectors. Indie says the head ports are clear and working.
What the heck else could this be??
Should I try using some Seafoam?
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 16
Likes: 0
From: North County San Diego
1997 E420, 1997 E420 Sport and 1990 300CE
Changed the one in the front under MAS to rear of engine bay area and changed the one in the front from check valve to switch over valve.
Still no difference. Check engine light and code still on.....
Still no difference. Check engine light and code still on.....
