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#572567 18/04/19 11:07 AM
Joined: Sep 2017
Posts: 72
R
Just Getting Started
OP Offline
Just Getting Started
R
Joined: Sep 2017
Posts: 72
My 4/4 with a 1.8 Duratec engine started playing up this morning caughing and sputtering after stopping to get some fuel the engine management light came on but the car quickly sorted itself out. On investigation i came up with the error code PO403 (exhaust gas recirculation control unit)

Any suggestions on resolving the problem greatfully received
Chris


2006 4/4 70th Anniversary Edition
2004 3.2 Audi TT Quattro
Joined: Nov 2015
Posts: 8,698
Likes: 498
Just barreling along
Needs to Get Out More!
Offline
Just barreling along
Needs to Get Out More!
Joined: Nov 2015
Posts: 8,698
Likes: 498
Chris, they have been known to 'soot up' with carbon deposits, if you're confident enough you can remove the unit and give it a bit of a manual decoke.

Or try some EGR fuel additive in the tank & give it an Italian tune-up


Jon M
Joined: Sep 2017
Posts: 72
R
Just Getting Started
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Just Getting Started
R
Joined: Sep 2017
Posts: 72
Thanks John I will try the spray first


2006 4/4 70th Anniversary Edition
2004 3.2 Audi TT Quattro
Joined: Sep 2017
Posts: 72
R
Just Getting Started
OP Offline
Just Getting Started
R
Joined: Sep 2017
Posts: 72
Tried Wynns egr cleaner and reset the error code unfortunatly the problem remains although it hasn't triggered a error code.

I am debating about removing the valve myself but it looks in a pretty inaccessible location or using a local garage l trust.

Chris


2006 4/4 70th Anniversary Edition
2004 3.2 Audi TT Quattro
Joined: Jun 2015
Posts: 2,095
Likes: 75
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jun 2015
Posts: 2,095
Likes: 75
Oven cleaner works well, just avoid any rubber bits.


Doug
2011 Plus 4 in Rich Maroon

1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
Joined: May 2012
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Rog Offline
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,707
Likes: 36
I beleave po403 could imply the solenoid is open circuit. A long shot and perhaps you have already tried it but you could try making and breaking the connector a few times? It could just possibly be a dirty connector. Make sure the ignition is off first.


Roger
2011 Plus 4
Joined: Sep 2017
Posts: 72
R
Just Getting Started
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Just Getting Started
R
Joined: Sep 2017
Posts: 72
Got to the bottom of the problem SPARK PLUGS severely corroded no doubt to water laying in the depression on top of the engine. The engine fault code was a red herring, must find a cover.

Chris


2006 4/4 70th Anniversary Edition
2004 3.2 Audi TT Quattro
Joined: May 2012
Posts: 1,707
Likes: 36
Rog Offline
Talk Morgan Enthusiast
Offline
Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,707
Likes: 36
Keith’s old thread may be of interest.


Roger
2011 Plus 4

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