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big kenny

Toyota Diagnostic Fault Codes

12 posts in this topic

Can any one help, Toyota fault code P0200 given on a Toyota diagnostic test on my 2007 avensis 2.2 D-4d tourer, problem is loss of power and engine cut out

dash fault lights for engine management light along with VSC and TRC lights

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Can any one help, Toyota fault code P0200 given on a Toyota diagnostic test on my 2007 avensis 2.2 D-4d tourer, problem is loss of power and engine cut out

dash fault lights for engine management light along with VSC and TRC lights

This will be

1- Injector gone bad

2- wiring loom gone bad.

But also EDU, ECU could have gone bad.

You need to take engine cover off,

Unplug and reseat all the injector wiring harness.

Look for any damage.

if the problem is still present, you need someone who has the diagnostics machines to

read live data from the obd2 port.

Edited by cmia

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Can any one help, Toyota fault code P0200 given on a Toyota diagnostic test on my 2007 avensis 2.2 D-4d tourer, problem is loss of power and engine cut out

dash fault lights for engine management light along with VSC and TRC lights

This will be

1- Injector gone bad

2- wiring loom gone bad.

But also EDU, ECU could have gone bad.

You need to take engine cover off,

Unplug and reseat all the injector wiring harness.

Look for any damage.

if the problem is still present, you need someone who has the diagnostics machines to

read live data from the obd2 port.

Thanks this is a good start, I,m also told it may be supermarket diesel causing tank pick-up fault and poor fuel pressure.

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could be,

But its not really a fuel pressure fault.

Replace the easy and cheap parts first.

1- Fuel filter

2- Check wiring loom

3- check connectors to edu, ecu, injectors.

4- get car onto a diagnosic machine and read live value.

when checking connection to edu and ecu.

Make sure to have ignition OFF and with battery + unplugged

You must let the system discharge.

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i just checked autodata code p0200 it shows up as injector malfunction ..

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i just checked autodata code p0200 it shows up as injector malfunction ..

....

Pointed that out many moons ago

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What are these injector malfunction?What is the best way to come up with this problem?

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What are these injector malfunction?What is the best way to come up with this problem?

you need to get the live data read

or remove the injectors and have them all tested / refurbed

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cmia i was only pointing out that autodata says what the code was ..

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Hello,

Did you manage to fix your car?

I have same problems with mine.

Toyota fault code P0200 given on a Toyota diagnostic test on my 2006 avensis 2.2 D-4d tourer, problem is loss of power and engine cut out.
dash fault lights for engine management light along with VSC and TRC lights""

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This may not be of much help to you, but this is typically the kind of problem that goes beyond random guesswork and likely beyond the skills of a DIY-er.

The P0200 error can point to a variety of things, including the wiring/connectors, the EDU, the ECM, one or more injectors, or a combination of these.

What is needed here is a proper testing device, to read all the relevant DTCs plus the co-called Freeze-Frame-Data.

The Freeze-Frame-Data is a valuable record of many engine parameter values from the time an error occurred and the error codes were stored.

And if the diagnostic process leads to question the injectors or a failing ECM, you need a oscilloscope to find out.

Not many DIY-ers have that.

I recommend consulting a good auto electrician, or a Toyota dealer.

If you know what causes the problem, you can still decide to do the repair yourself.

In the end it's probably money well spent, as it avoids replacing some expensive parts that are not at fault at all.

As this seems to be a fuel injection problem, with the above mentioned proper testing device, you can see the internals of the engine at work.

You can see the commands from the ECM being sent to the injectors, how much fuel is injected on each cycle, the confirmation of the injectors that they have "injected", etc.etc.

For instance, only a single such missing confirmation is enough for the ECM to raise a P0200 error, store a Freeze-Frame, and set "Fail-Safe", or limp mode, to protect the engine from possible damage.

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