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Joined: Sep 2002
Posts: 57
CEG\'er
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OP
CEG\'er
Joined: Sep 2002
Posts: 57 |
My CEL is on and I need Help getting rid of them. The codes are P0401,P0402,P1405,P0340. Thanks in advance.
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Joined: Aug 2001
Posts: 1,089
Hard-core CEG\'er
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Hard-core CEG\'er
Joined: Aug 2001
Posts: 1,089 |
go to the FAQ section of the forums and you will see a section with all the cell codes just look them up there.. i think one means you need to replace your egr valve p401 insufficient air egr valve and p402 is excessive air flow egr valve .... once again i think cuz i had this too and i changed my egr valve and that code went away.
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Joined: Jul 2000
Posts: 1,044
Hard-core CEG'er
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Hard-core CEG'er
Joined: Jul 2000
Posts: 1,044 |
The first 3 codes are EGR related but the 1405 code indicates a DPFE sensor problem and could be causing the 0401 and 0402 codes which contradict each other. If all the hoses are good leading to the DPFE, you may need a new DPFE sensor. The 0340 is for a camshaft position sensor fault which could indicate a bad sensor, flakey sensor connector or big problems with the cam shafts & drive train. If the car is running OK, the 0340 may just be an intermittent sensor fault.
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Joined: Nov 2000
Posts: 10,015
Hard-core CEG'er
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Hard-core CEG'er
Joined: Nov 2000
Posts: 10,015 |
Yeah the DPFE on the Contour is a total POS. I changed mine 2 times already!  
2000 SVT Turbo 295hp/269ftlb@12psi
#1 for Bendix Brakes Kits!
Knuckles rebuilt w/new bearings $55
AUSSIE ENDLINKS $70
Gutted pre-cats $80/set
A lack of planning on your part does not constitute an emergency on mine!
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Joined: Mar 2002
Posts: 193
CEG\'er
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CEG\'er
Joined: Mar 2002
Posts: 193 |
98 SVT Contour #1702 (silver) - traded in & missed alot!
02 SVT Focus #2686 (blue) - beginning to enjoy the 4-banger.
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Joined: Nov 2000
Posts: 10,015
Hard-core CEG'er
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Hard-core CEG'er
Joined: Nov 2000
Posts: 10,015 |
It's the Pressure sensor that messure the flow through the EGR valve. It messure the differential pressure across an orifice, and compares that to the tables in the ECU to determine whether the EGR is functioning correctly. It's quite intricate and the diaphragm is made from a type of rubber/yrethane, which after extended exposure to the corrosive exhaust gases, detriorates and begins to output false signals.
2000 SVT Turbo 295hp/269ftlb@12psi
#1 for Bendix Brakes Kits!
Knuckles rebuilt w/new bearings $55
AUSSIE ENDLINKS $70
Gutted pre-cats $80/set
A lack of planning on your part does not constitute an emergency on mine!
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Joined: Aug 2001
Posts: 2,061
Hard-core CEG'er
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Hard-core CEG'er
Joined: Aug 2001
Posts: 2,061 |
some of us here who have cel's and codes re: egr have cleared the codes by cleaning the egr ports behind the throttle body...and the throttle body as well since u have to remove it to get to the ports...
others can offer more insight, but in the meantime u can go to the how-to's section and read up on the procedure to clean the ports
i have 95 tho which pulls different codes so this doesn't necessarily have to be whats wrong but the ports getting clogged with carbon will definitely give u codes for the egr system
99 expedition eddie bauer, 5.4 v8, k&n drop-in, 3" magnaflow catback and gas mileage that makes the contour look like a hybrid
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