D5 (D5244T to 2005) Starting issue, rough running

[harrympotter]

PFA attached screenshot

Are these legitimate? My understanding is they should be around zero plus/minus 3.

Can you alter? How ? Or is this the corrections above or below zero the ECM is adding.

[cheshired5]

Originally Posted by harrympotter

Are these legitimate? My understanding is they should be around zero plus/minus 3.

Are you reading and acting on the responses you're getting from other members?

As suggested by Reggit, your figures aren't unheard of and don't definitively explain your poor starting.

Originally Posted by harrympotter

Can you alter? How ? Or is this the corrections above or below zero the ECM is adding.

I've suggested trying alternative ECM coding settings to see if the correction changes.

Vida also explains the test plus many others including injector class changes which you can read at your leisure.

[reggit]

VIDA Fault Trace, nothing really in ECM.

Just re-read your initial message, Are there any DTC’s evident at all?

[harrympotter]

The unreliable source was YouTube, a vid on how to run the injector test, said you may get spurious results for Euro 3 engines, it's only designed for euro 4 onwards.

Faults codes: just EGR low flow, which was a blanking plate/gasket which I have now removed, and cleaned the EGR.

I need to learn how to change the corrections settings, to an alternative, how many options are there? Need to read up. Where do in I start on VIDA?

[harrympotter]

Been away for the weekend, not in the d5.

Had a look at DTC delivery: ECM 4405 EGR Valve - flow too low. Characteristics: could be poor to start. How can I prove / function test the EGR? Live data on parameters says 1% EGR Actuator, blip the throttle goes up to 60% then back to 1% quickly.

Altering the ECM injector class.

Class 1 - Nō 1. 7.53 mm³
2. 11.33
3. 5.41
4. 0
5. 29.37

Class 2 7.16
10.38
5.49
0
31.21

Class 3. 7.14
9.8
5.48
0
31.58

[cheshired5]

Originally Posted by harrympotter

Live data on parameters says 1% EGR Actuator, blip the throttle goes up to 60% then back to 1% quickly.

What does Vida say is a normal reading?

[harrympotter]

The parameters show how much the Engine control module (ECM) needs to adjust the fuel amount in order to maintain the correct speed of each cylinder.

Value above 0 means that the Engine control module (ECM) increases the fuel amount, i.e. the injector gives a lesser amount of fuel than nominal.

Value below 0 means that the Engine control module (ECM) reduces the fuel amount, i.e., the injector gives a greater amount of fuel than nominal.

Check fuel correction on each cylinder.

The normal value is approx. 0 mm3 rpm.

If fuel correction is +3 mm3 or higher, or -3 mm3 or lower, on any cylinder, this indicates problems.

If any cylinder shows too high or too low fuel correction, it shall be compared with the result from check of combustion (2) to decide possible problem causes.

[cheshired5]

Originally Posted by harrympotter

The parameters show how much the Engine control module (ECM) needs to adjust the fuel amount in order to maintain the correct speed of each cylinder.

Value above 0 means that the Engine control module (ECM) increases the fuel amount, i.e. the injector gives a lesser amount of fuel than nominal.

Value below 0 means that the Engine control module (ECM) reduces the fuel amount, i.e., the injector gives a greater amount of fuel than nominal.

Check fuel correction on each cylinder.

The normal value is approx. 0 mm3 rpm.

If fuel correction is +3 mm3 or higher, or -3 mm3 or lower, on any cylinder, this indicates problems.

If any cylinder shows too high or too low fuel correction, it shall be compared with the result from check of combustion (2) to decide possible problem causes.

Yes I know that.

I was asking about the EGR figures as per the quote included in my question.

[harrympotter]

Sorry didn't notice, or understand these quotes, not been on for years.

EGR CONTROL.
Measurement range: 0-100%
Shows actual deployment to the EGR valve.
Normal value when the engine is idling within 2 minutes is approx. 40% (EGR valve open).
Normal value when the engine is idling after 2 minutes is approx. 3% (EGR valve closed).

TEST.
Added EGR actuator to parameters, to watch, (15 secs of cranking) caughs into a rough idle. Reads 1% under two mins, reads 1% after two mins.

EGR closed @ 1% (Broken closed??) ECM 4405 - Flow too low. When I'd de-coked and cleaned the EGR the spring valve was free to open, easy to push open. But didnt test the actuator ! or the signal that feeds the actuator. Eleect plug is on/connected.

Surely this is an additional fault to the v poor starting and running,

[harrympotter]

In communication, ECM, activations, You can trigger the EGR Actuator, it should "click" I have no click. Looking at the supply plug to EGR Actuator.