Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [egr]

Acronym for the Exhaust Gas Recirculation valve. It is a smog device which diverts spent exhaust gases back into the intake tract to help limit temperatures in the combustion chamber. The main purpose was to help reduce NOx emissions.

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Ford Focus with error code P242F (DPF failure)

I have a 2008 Ford Focus (UK) with a 1.6 TDCi engine and 60K miles. This weekend I got error code P242F stating "diesel particulate filter restriction ash accumulation" and the vehicle has gone into limp mode. I first had the same error a few…
Equalsk
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Does it make the most sense to replace an old car's entire exhaust system all at once?

Back story: The Check Engine light came on in my 2005 Chevrolet Malibu LS Sedan (V6 3.5L). I took the car to a mechanic #1 (M1), an independent shop. They replaced the EGR valve. A day later, the Check Engine light came on again. I took it back to…
Chris W. Rea
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What effect will removing my EGR have?

My 2003 Jetta TDI check engine light recently came on, and a scan by Advance Auto revealed code P0401 -- EGR insufficient flow. I took the vehicle to the local TDI guru, who gave me the option of removing the EGR from the system entirely, and…
Flimzy
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BMW E90 M47TU2 EGR clean

I have a BMW E90 2007 with a M47TU2 engine, Can anyone tell me where the EGR valve is? How to get it off, howto clean it and what cleaning materials are required. Thanks
Michael Baldry
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Best way to remove carbon and gunk build up

recently a friends Mazda 6 ts 2.0 diesel 2005 has started reporting a low boost condition fault. I have identified the issue as being the egr stuck open during boost as the issue. I removed some of the piping to the EGR and left it to soak in carb…
Mark
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After Replacing EGR valve and tube: repeat of code P0401 for 98 Accord V6

About 13 months and 7500 miles ago, my mechanic replaced the EGR Valve and Tube and cleaned the intake to solve the low airflow problem. Now I'm again getting an insufficient flow warning with my check engine light (code P0401). I noticed the light…
SAG
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I have a Vauxhall zafira diesel 1.7 what happens if the EGR valve and inlet manifold get blocked with carbon

What happens if the EGR valve and the inlet manifold get completely blocked
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Car with EGR and without catalyst

TL;DR Mercedes 250 diesel 12/1995 Rode 350.000km always in low revs Feels clogged, low power Disabled EGR, empty catalyst Questions: How to restore power to the engine Should an EGR be active without a working catalyst? My car is a mercedes 250…
Camandros
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Possible EGR problem on Fiat Idea Multijet 1.3 Diesel

I've been having issues with my 56 plate Fiat Idea for a while now. It seems to drive normally up to about 2500-3000 rpm where the car lurches a little, as though i shifted down a gear, the MIL light comes on and the car becomes incredibly sluggish.…
Ctrl-alt-dlt
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Honda FIT GP1 HYBRID 2011 knock

in my auto gear honda fit gp1 hybrid car, (mileage 56 000 KM) I had a engine tune up and changed my injectors (8 injectors) last month and after 2 weeks i started getting a slight knock (jerk or shaking). i remember i have had this once or twice in…
user9059
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Ford Escape 2002 idling rough in cold weather

Last week my 2002 Ford Escape started idling rough when the temperature was in the 30-40°F (-1°C to 4°C) range. It also seemed to have trouble shifting or something at 40-45 mph. I'd describe it as a stutter/shudder, and I could see the tach jumping…
Doresoom
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Should the EGR be activated at idle?

My 98 Mazda 626 2L ATX has a fully electronic EGR valve controlled by the ECU. I've been trying to figure out a rough idle problem for a long time, which gets worse when the engine is under load, such as if the brake is held down in drive, if the…
Robert S. Barnes
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Does Mazda's Skyactiv-G engine avoid EGR altogether?

It looks like Mazda sees high compression-ratio engines as the way forward to boost fuel economy and specific power on their midsize gasoline engine lineup (13:1 is an impressive achievement). According to their promotional material they reduce the…
Zaid
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Mazda 3 1.6 OBDII P0403 resolved after changing spark plugs?

I had been plagued by intermittent OBDII P0403 check engine light for months. I changed the EGR valve, had the harness replaced but to no avail. The workshop said it is the PCM and quoted a hefty price for it which I declined. Feeling my engine…
Andrew Tan
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Is EGR valve change necessary?

Recently I had the engine heater warning lamp (coil symbol) turned on while driving on my 2009 VW Polo diesel. The engine started losing power when going at a speed of over 100 km/h. After a couple of days, the lamp turned off. My mechanic told me…
Mate Mrše
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