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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Car stalls on intersection or when coming to a stop

I have a 2000 Mazda 323F (some say it is Protégé but not sure) AT 1.6L (at 128K km). It runs smooth, accelerates great and shifts nice on most occasions. But there are times after running for a ...
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39 views

Need explanation on Commanded EGR and ethanol%

There are 2 PIDs listed in this Wiki page - Commanded EGR and ethanol%. I have tried getting the values from some cars but have not succeeded. I am curious to know what do these 2 PIDs mean? Can ...
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332 views

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 ...
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2k views

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 ...
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509 views

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 ...
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242 views

VW Golf 2001 Mk4 Diesel ASR Engine Problem

I've spent a crazy amount of money on my car lately and I still have the same problem. I've replaced the: Catalyst Converter Radiator Starter Motor EGR Valve Track Rod ends & Wheel Bearings ...
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398 views

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 ...
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530 views

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). ...
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519 views

2000 Honda Accord won't start when engine is warm

I have a 2000 Honda Accord. A few years ago I started having an issue with the car not wanting to start once the engine was warmed up. I finally took it to the dealership and they diagnosed that ...
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339 views

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 ...
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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 ...
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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
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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 ...
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448 views

BMW 33D 2001 no power problem

I have: BMW 330D, 2001 year, saloon, 135kw Recently I have change the turbo charger of my car. There was a problem related with this post. Then I went to the garage and they ran the diagnostics. ...
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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 ...