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marklord1983

Member Since 29 Aug 2013
Offline Last Active Jul 20 2014 04:28 PM
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#333460 Mondeo 2.0 Tdci Blanked Egr - Worth Replacing Egr Still?

Posted by marklord1983 on 17 February 2014 - 07:27 PM

I've blanked mine and I clear it often, but if you leave it on it will go off on its own but when you put your reader in the fault still shows.

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#306215 Egr Blanking Ford Focus

Posted by marklord1983 on 17 November 2013 - 09:13 AM

I got that post off wiki but it was from a official agency in the EU it wasn't just someone who put his own opinions on there, a friend of mine is a mechanic and he's said blank it off as the dpf won't clog half as fast, he said on a diesel you only ever see black smoke due to the egr and the black smoke you see is what a dpf catches. Sent from my SM-N9005 using Ford OC mobile app


#306094 Egr Blanking Ford Focus

Posted by marklord1983 on 16 November 2013 - 08:37 PM


EGR in spark-ignited enginesIn diesel enginesEdit

In modern diesel engines, the EGR gas is cooled with a heat exchanger to allow the introduction of a greater mass of recirculated gas. Unlike SI engines, diesels are not limited by the need for a contiguous flamefront; furthermore, since diesels always operate with excess air, they benefit from EGR rates as high as 50% (at idle, when there is otherwise a large excess of air) in controlling NOx emissions.[citation needed] Exhaust recirculated back into the cylinder can increase engine wear as carbon particulate wash past the rings and into the oil.[6]

Since diesel engines are unthrottled, EGR does not lower throttling losses in the way that it does for SI engines. Exhaust gaslargely carbon dioxide and water vaporhas a higher specific heat than air, so it still serves to lower peak combustion temperatures. However, adding EGR to a diesel reduces the specific heat ratio of the combustion gases in the power stroke. This reduces the amount of power that can be extracted by the piston. EGR also tends to reduce the amount of fuel burned in the power stroke. This is evident by the increase in particulate emissions that corresponds to an increase in EGR.[7]

[8] Particulate matter (mainly carbon) that is not burned in the power stroke is wasted energy. Stricter regulations on particulate matter(PM) call for further emission controls to be introduced to compensate for the PM emissions introduced by EGR. The most common is a diesel particulate filterin the exhaust system which cleans the exhaust but reduces fuel efficiency. Since EGR increases the amount of PM that must be dealt with and reduces the exhaust gas temperatures and available oxygen these filters need to function properly to burn off soot, automakers have inject fuel and air directly into the exhaust system to keep these filters from plugging up.

By feeding the lower oxygen exhaust gas into the intake, diesel EGR systems lower combustion temperature, reducing emissions of NOx. This makes combustion less efficient, compromising economy and power. The normally "dry" intake system of a diesel engine is now subject to fouling from soot, unburned fuel and oil in the EGR bleed, which has little effect on airflow, however, when combined with oil vapor from a PCV system, can cause buildup of sticky tar in the intake manifold and valves. It can also cause problems with components such as swirl flaps, where fitted. Diesel EGR also increases soot production, though this was masked in the US by the simultaneous introduction of diesel particulate filters.[9] EGR systems can also add abrasive contaminants and increase engine oil acidity, which in turn can reduce engine longevity.[10]

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#304305 Diesel And Egr Dpf Read Intresting!

Posted by marklord1983 on 11 November 2013 - 10:47 AM

I whistle when I'm happy too lol

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#304254 Diesel And Egr Dpf Read Intresting!

Posted by marklord1983 on 11 November 2013 - 09:24 AM

EGR in spark-ignited enginesIn diesel enginesEdit

In modern diesel engines, the EGR gas is cooled with a heat exchanger to allow the introduction of a greater mass of recirculated gas. Unlike SI engines, diesels are not limited by the need for a contiguous flamefront; furthermore, since diesels always operate with excess air, they benefit from EGR rates as high as 50% (at idle, when there is otherwise a large excess of air) in controlling NOx emissions.[citation needed] Exhaust recirculated back into the cylinder can increase engine wear as carbon particulate wash past the rings and into the oil.[6]

Since diesel engines are unthrottled, EGR does not lower throttling losses in the way that it does for SI engines. Exhaust gaslargely carbon dioxide and water vaporhas a higher specific heat than air, so it still serves to lower peak combustion temperatures. However, adding EGR to a diesel reduces the specific heat ratio of the combustion gases in the power stroke. This reduces the amount of power that can be extracted by the piston. EGR also tends to reduce the amount of fuel burned in the power stroke. This is evident by the increase in particulate emissions that corresponds to an increase in EGR.[7]

[8] Particulate matter (mainly carbon) that is not burned in the power stroke is wasted energy. Stricter regulations on particulate matter(PM) call for further emission controls to be introduced to compensate for the PM emissions introduced by EGR. The most common is a diesel particulate filterin the exhaust system which cleans the exhaust but reduces fuel efficiency. Since EGR increases the amount of PM that must be dealt with and reduces the exhaust gas temperatures and available oxygen these filters need to function properly to burn off soot, automakers have inject fuel and air directly into the exhaust system to keep these filters from plugging up.

By feeding the lower oxygen exhaust gas into the intake, diesel EGR systems lower combustion temperature, reducing emissions of NOx. This makes combustion less efficient, compromising economy and power. The normally "dry" intake system of a diesel engine is now subject to fouling from soot, unburned fuel and oil in the EGR bleed, which has little effect on airflow, however, when combined with oil vapor from a PCV system, can cause buildup of sticky tar in the intake manifold and valves. It can also cause problems with components such as swirl flaps, where fitted. Diesel EGR also increases soot production, though this was masked in the US by the simultaneous introduction of diesel particulate filters.[9] EGR systems can also add abrasive contaminants and increase engine oil acidity, which in turn can reduce engine longevity.[10]


#304090 Egr Blanking Ford Focus

Posted by marklord1983 on 10 November 2013 - 05:11 PM

I've just done my egr valve today on my 2.0 tdci focus 07 reg with dpf took 5 minutes to do light hasn't come on and I've checked fault codes and nothing so far


#300624 Think Dpf Is On Way Out

Posted by marklord1983 on 29 October 2013 - 05:23 PM

Well I went to the garage today to someone different and he said he was gonna have a look and check everything thing first, after a couple of hours he called up and said everything is fine dpf is clear enough injectors and sensors all working right, and he said he thinks I should just keep it as it is as it's not giving me any problems,so he charged me 30 quid and car feels fine, he said if it does ever go to call he's confident that it's still healthy lol, I also asked if I should delete egr and he said it won't do any harm being closed it's only when they stock open you have problems, I also said about a having a tuning box on it that I had just took off and he said that it probably did the dpf good, so looks like I'm gonna keep it on for now and save some penny's lol


#300144 Think Dpf Is On Way Out

Posted by marklord1983 on 28 October 2013 - 07:33 AM

Just an update: the guy who was supposed to come and do it didn't so taking it to a garage tomz instead and there gonna check it first to see how clogged it is before they do anything, funny thing is its been fine since but gonna get it checked.


#298637 Think Dpf Is On Way Out

Posted by marklord1983 on 22 October 2013 - 01:47 PM

Ahhha stupid things can't wait to get it off, I do short journeys in mine as of late and one longish trip a week so will do it good hopefully


#298615 Think Dpf Is On Way Out

Posted by marklord1983 on 22 October 2013 - 12:20 PM

Cool thing is I usual do everything myself so it's not to bad on my engine the fluid is easy to do im gonna have to check oil and hope diesel hasn't been getting in the oil, im sure I heard somewhere that the way Ford did the dpf was different to the pug ones and that diesel doesn't get in the oil


#298597 Think Dpf Is On Way Out

Posted by marklord1983 on 22 October 2013 - 11:12 AM

At the moment I'm not raving over 1500 rpm just so I don't put mush pressure on the turbo, just looking forward to driving it and not worrying all the time thinking when it's going to stop lol and the guy who does it says he gives lifetime warranty on the software upgrade which is good


#298477 Think Dpf Is On Way Out

Posted by marklord1983 on 21 October 2013 - 07:37 PM

Cool I'll do that I think, im sure I can here a bit of a rasping noise maybe back pressure?