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03 1.7 vauxhall corsa with p0400 and p1125 fault codes done the norm and checked pipes, pleasure cleaned egr everything bare the electrics I have been told this is a common electric fault but where

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Posted on Jan 02, 2017

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SOURCE: no vacuum to egr valve

there is an EGR vacuum solenoid somwhere that controls on/off vacuum to actuate the valve. i am not to sure of the location, but follow the vacuum line back from the egr until you find a device that looks like an electrical check valve for vacuum. that is a possibilty. but then again i am a ford,chrysler guy and am just giving you an answer based on my understanding of the functuality of a vacuum egr system

Posted on Jan 15, 2009

  • 1 Answer

SOURCE: how to replace EGR valve on 99 Chevy Tracker

Take off your EGR valve and clean it out with carb cleaner also
grease tyhe little screw thing in it,,, u will c what i mean if u take it apart. carbon builds up in the chamber. it is located at the back left side of your engine and is a bit of a pain to take off. this should save u the cost except for the cleaner and labor. i had the same problem cheapest i found was 90$ on ebay.

Posted on Jan 17, 2009

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SOURCE: code p0400 keeps coming up after changing the egr valve and sol.

It may be that the passage to the exhaust is blocked also.

Posted on Aug 14, 2009

  • 1 Answer

SOURCE: I have a 1997 subaru outback legacy getting a

There is a tube that connects to the EGR valve that gets blocked up-take it off and clean it out

Posted on Oct 21, 2009

  • 2 Answers

SOURCE: 2001 isuzu trooper. Check engine and reduced power

Change the car spark plugs, for sure you solve youre problem. Maintenance, less that $25, for a set of 4 !! God bless !

Posted on May 24, 2012

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2 Answers

How to fix opel corsa rough idling and starting problems.

Could be bad coolant temp sensor (common part to fail) that tells ECU engine temp to adjust fuel mix. If it fails it can tell The ECU engine is warmed up when really cold and cause hard starting and poor idle. Could also be IAC or EGR.

Apr 26, 2016 | Opel Cars & Trucks

2 Answers

99 maxima ran till it was parked now it turns over will not start gave code p0400 any ideas

The fault is somewhere around the EGR valve - probably the EGR valve or the throttle position sensor.

Before replacing any sensors try removing and cleaning the EGR.

Here's a Youtube link that may be of help to you:

1999 maxima egr Google Search

This link explains about the EGR:
P0400 Exhaust Gas Recirculation Flow Malfunction

CEL code P0400 EGR Flow Malfunction

Mar 27, 2016 | Cars & Trucks

2 Answers

What are the probable causes of DTCs P0400, P0171, P0174 y P0302?

DTC code PO400 could be caused by a clogged EGR valve or EGR tube. try cleaning the EGR valve, tube
DTC code PO171 is fuel system too lean bank 1
DTC code PO174 is fuel system too lean Bank 2
Most likely suspects are O2 sensors, But can be caused by vacuum leaks and also can be Mass airflow sensor (MAF) try cleaning with electrical parts cleaner
DTC code PO 302 is a misfire at cylinder # 2
Check spark plugs and wires
Try cleaning the EGR Valve first along with changing the spark plug first, and see if any codes erase, in other words start with the cheaper fixes first, as some problems can be causing the other other codes

Sep 18, 2015 | Cars & Trucks

1 Answer

My 2004 Sebring 2.4L does not have an egr valve. The engine light is on light is on with and error of p0400 . So what now?

Hi Gerard, I'm glad to help. Gerald, I work on these everyday almost. The EGR Valve is located at the rear of the engine which would be near the brake fluid reservoir. It's way down low to the right under the exhause pipes very hard to see very hard to get to. When you replace it, get from the dealer and it will come with a new vacuum valve or at least it used to. You'll also need to clean the tube out because it will be full of carbon build-up and also make sure the hole in the cylinder head where it mounts is not blocked. Hope this helps and have an awesome day Gerald!

May 03, 2014 | 2004 Chrysler Sebring Sedan

1 Answer

My 2004 Sebring 2.4L does not have an egr valve. The engine light is on light is on with and error of p0400 . So what now?

With the code coming up for an EGR valve I would consider it unlikely that it left the factory without one as it would have had the code from day one and it would have been fixed at a service under warranty.. If you got the car second hand then it is possible that the EGR valve failed and the previous owner found it easier to blank it off to sell it . I would consider fitting a new valve and getting it working properly as it is critical to passing the road worthy certificate., performance and economy.

May 03, 2014 | 2004 Chrysler Sebring Sedan

1 Answer

Corsa emission light stays on

cat sensor or egr fault. would need the codes to be read first.

Dec 11, 2012 | Vauxhall Cars & Trucks

2 Answers

Egr valve cleaning

Usually the EGR valve problems show the fault code P0400 - Exhaust Gas Recirculation Flow Malfunction

What does that mean?
The exhaust gas recirculation (EGR) valve is vacuum controlled valve that regulates the amount of exhaust gases that re-enter the cylinders. The powertrain control module (PCM) determines how much based on engine load, temp, and other conditions. If the PCM detects that the amount of exhaust gases entering the cylinder were insufficient or non-existent, this code is set.

No symptoms will likely be noticed by the driver other than the MIL (malfunction indicator lamp). However, non visible symptoms will be increased combustion temperature and increased Nox emissions.

A code P0400 may mean that one or more of the following has happened:
* Plugged EGR passage which restricts the flow of exhaust gasses
* Faulty EGR solenoid
* Faulty EGR solenoid wiring/harness
* Vacuum lines damaged/disconnected to the EGR valve solenoid or to the EGR valve
* Faulty EGR valve

Possible Solutions
Since EGR valve designs are different, no one test will suffice:
* Using a scan tool, operate the EGR valve with the engine running. If the engine stumbles, the problem was likely intermittent wiring problem or intermittent blockage problem
* If engine doesn't stumble, operate the EGR valve manually, if possible. If engine doesn't stumble and die, the ports are likely plugged. Removal of valve and cleaning of all ports will be required
* Checking of solenoid can only usually be done with a scan tool, because most solenoids operate with a duty cycle of voltage, rather than constant voltage
* Check all vacuum lines, hoses, etc for any damage
* Visually inspect the solenoid harness and the solenoid for damage
* Replace EGR valve

FOr price about this part, check this links:
- cpwstore.carpartswholesale
- autopartswarehouse

Hope this helped (remember comment and rated this).

May 08, 2010 | 1998 Suzuki Esteem

1 Answer

Getting an error code of p0400 on a vauxhall 1.7 diesel sri corsa 54 plate, how can i fix it??

PO 4OO Code is an EGR valve flow malfunction. It might be as simple as removing the valve and cleaning it.
Hope this is of some help to you

Sep 06, 2009 | 2009 Volkswagen Routan

2 Answers

Code p0400 keeps coming up after changing the egr valve and sol.

It may be that the passage to the exhaust is blocked also.

Aug 14, 2009 | 1996 Nissan Sentra

2 Answers


P0400 Exhaust Gas Recirculation Flow Malfunction

Post more information on your vehicle, and the symptons which lead to the fault.

Strictly Saab
Melbourne, FL

Aug 30, 2008 | 2000 Saab 9-3 Viggen

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