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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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My truck failed emissions because they couldn't find the EGR

I just took my 2011 GMC Silverado 2500 w/Duramax in for an emissions test in Utah County. They do more than just emissions test. They look to make sure all the elements of the emissions system are in ...
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Cause of faulty EGR valve

I recently had my diesel Range Rover sport serviced but the garage didn’t re-seat the fuel filter correctly causing a leak of fuel. At the same time, my engine light came on and it turned out to be ...
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2010 Ford focus failed MOT TDCI

The mechanic plugged the computer and got these faults: Exhaust gas recirculation control circuit (circuit hight) Exhaust gas recirculation value frozen. Fuel pressure control value. Injector control ...
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unplug the “electrical socket EGR” will delete EGR?

i have lagging RPM and someone said it could be from EGR valve. if my bad RPM is coming from dirty EGR then can i disconnect the electrical socket on top and check RPM? its very difficult job to ...
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does we have coolant water in EGR?

today i wanted to clean my EGR. but when i disconnect below hose (picture) , coolant water splash out from there is it okay this? why we have water in EGR?
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RPM Lagging On Mazda 3 - 2008

i have mazda 3 2008 with auto transmission. after drive for 10-15 mintues the rpm get lagging. (when the lag start i lost a little performance on car :: pushing the pedal the rpm goes to 4000 but ...
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After about 10 minutes in car: throat burns; no smell

Ford Focus LXT DCI 1753cc Diesel Estate MK11. Mileage: 57000. P0489 Diagnostic code. EGR valve has been replaced. Vehicle drives beautiful. After driving for about 10 minutes, throat begins to burn, ...
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Mechanic is recommending new catalytic converters. Are these temperatures that bad?

I failed a smog test in CA (1992 Corvette) and the results came back that the EGR valve is not holding pressure. It failed on nitric oxide emissions measured at 989 ppm at 15 mph and 1329 ppm at 25 ...
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P1461 - EGR (Exhaust Gas Recycling) error, what does this mean

Each time I turn on the engine it says Depollution System Faulty, the diagnosis says "P1461 | Exhaust Gas Recycling Electric Valve Copy Signal Valve Low Limit Drift Since First Start - up ..." I ...
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What is exhaust gas recirculation?

From what I understand, EGR is used to reduce the temperature of combustion without increasing the amount of fuel injected to reduce NOx emission. This is done by reducing the oxygen percentage ...
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02 Taurus no acceleration, miss shifting, and no power

I have a 2002 Taurus 3.0 OHV. I'm getting no acceleration, miss shifting, and no power. I installed a new EGR control valve, differential pressure sensor, air filter, and coolant temperature sensor, ...
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Mercedes-Benz W203 C220 CDI doesn't accelerates as it should

First of all, sorry for my English. I have a Mercedes W203 C220 CDI (first model 2001) and when I run the car in the morning or when I get back from work in the afternoon (after a few hours without ...
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Rough idle and 02 sensor voltage drops to zero, cylinder 2 misfire

Vehicle is a 2007 Dodge Nitro R/T with a 4.0L engine. I've had a lot of trouble diagnosing a cylinder 2 misfire and looking for help on next steps. Symptoms After engine is warm, stop and go ...
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Advice for cleaning an electrically actuated EGR valve

Intro - skip to TL;DR for the main part of the question... I keep getting P0402 errors indicating EGR excessive flow on a VW Golf IV Variant, 1.6 l, 16V, engine code AZD. When warm, the engine ...
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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, ...
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Exhaust Gas Recirculation Valve 2003 Focus

I have replaced two EGR valves and paid to clean a clogged one that made my check engine light go on. How can you prevent this problem from reoccuring?
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Could a stuck EGR cause better gas mileage?

The Check Engine Light in my 1995 Geo Prizm turned on around two months ago. I checked the code (shorting the OBDI E1 and TE1 terminals and counting the flashes) and saw that the issue was with the ...
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Is this a good explanation of EGR principles?

I hope this is in the right category! Good education helps good aid in repairs right? After reading the wikipedia article on EGR systems I was dissatisfied with the explanation and thought I could ...
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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 ...
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474 views

Ford DuraTorq TDCi EGR system (Euro4) operation, blanking

Specifically the 2008-on (Euro-4 emissions compliant) 2.2 diesel as fitted to Jaguar X-Type (and Mondeo, Transit, etc.) but I suspect the entire DuraTorq family are the same: I've seen EGR blanking ...
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Seat Toledo engine stalls when warm

I have a 2001 1.6 16v Seat Toledo. Short story: My car randomly stalled when the engine warmed up to operating temperature and I could not restart until it cooled down. A mechanic cleaned the ...
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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 ...
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Egr valve cleaning (2.0Tdi 2005)

I would like to give my cars egr valve a good cleaning. I have seen a few YouTube videos and they can get fairly caked up. Would it be recommended to clean it by submerging it in petrol for a few ...
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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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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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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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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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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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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 The ...
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2k 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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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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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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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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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 ...