Chuky Posted January 16, 2019 Share Posted January 16, 2019 Hello, Let me start by introducing myself, I am originally from South Africa but now based in London. I am not a mechanic but know a few things about cars and general mechanical troubleshooting and I once owned a Ford Laser turbo TX3 which i always regret selling. My issue is that my more recent Ford Focus 1.6 tdci having egr valve issues where when driving I lose boost pressure and performance. This normally happens on the motorway when cruising. Ive had it to the mechanic 4 times in the last year where they have replaced the EGR valve each time telling me its faulty. lucky i've only paid for 1 replacement the other 3 being under warranty. It's also been taken to Think Ford in Bracknell who blamed a boost pipe that has been replaced. Current error codes are as follows: P0490-20 Exhaust Gas Recirculation Control Circuit High P042F-20 EGR Control Stuck Closed P042F-P EGR Control Stuck Closed Now the errors say that the EGR is stuck closed but when running test it appears to be closed and occasionally opening (which I assume is normal operation) and then when cruising at 70mph goes from 100% to 0% and stays there. boost and power as a result go down. Now trying to figure out my options with this as this issue getting rather annoying: 1. Do I do a EGR delete, though I don't want to be removing all the coolers and plugging the holes so would this be possible with software? If so can how easy can it be done? what software would I use for it? 2. Is it worth getting another replacement of the EGR valve? 3. Spend more money on getting the wiring checked by a auto electrician? Thanks for the help Quote Link to comment Share on other sites More sharing options...
Chuky Posted January 16, 2019 Author Share Posted January 16, 2019 sorry forgot to mention its a 2009 mk2.5 ford focus Quote Link to comment Share on other sites More sharing options...
DJ_Andy_M Posted January 16, 2019 Share Posted January 16, 2019 Had issues with my EGR on my MK2.5. They replaced the valve in end but I'm sure a clean will do the trick. Quote Link to comment Share on other sites More sharing options...
Chuky Posted January 16, 2019 Author Share Posted January 16, 2019 initially i thought that was the case but as its been through 4 in the space of a year im not sure Quote Link to comment Share on other sites More sharing options...
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