2006 Vito 109 CEL issue

[ricasso]

I'm having problems with the check engine light on my Vito, it's more or less constantly on, it might go off occasionally during a drive only to come back on again 5 or 10 minutes later, also sometimes the turbo might kick in (even with the light on) only to stop working not long after, this is all on a drive without stopping, I've tried my code reader, actron CP9185 but that not reading any faults at all even though its communicating with the van ok.
It went through its MOT a couple of months ago with no problems, emissions were fine,the light did come on while driving to the test though luckily it went out just before I got there!
I'm starting to think its an issue with the ECU or similar, does anyone have any thoughts on this?

 

[m80]

I would suggest you need a different (maybe better) code reader. Sorry I don't know yours.
People rave about iCarsoft V2, I'm not the greatest fan but acknowledge they can be good.
Xentry Star is the clear winner, but expensive to buy and at Indies there is a cost for diagnosis.

A simple and cheap reader is EML327 plugged into your OBD port and read via an Andriod unit on 'Torque' (free download with the pro available).

No codes and your guessing. MAF, EGR, any of many sensors.

 

[m80]

In the short term you might try removing and cleaning your EGR valve. They can get awkward and intermittent prior to seizing totally.
They can also be freed off and serviceable after seizing, plus gas can be useful there.
They can also be a bitch to extract, requiring a couple of hour s of clockwise / anticlockwise rotation, 1mm, 2mm..... and also not in an easy location on the 646 engine.
If yours happens to be the 642 (3 litre V6) engine its much easier.

 

[ricasso]

In the short term you might try removing and cleaning your EGR valve. They can get awkward and intermittent prior to seizing totally.
They can also be freed off and serviceable after seizing, plus gas can be useful there.
They can also be a bitch to extract, requiring a couple of hour s of clockwise / anticlockwise rotation, 1mm, 2mm..... and also not in an easy location on the 646 engine.
If yours happens to be the 642 (3 litre V6) engine its much easier.

Mine is the 2.1 litre, the baby of the range I believe.

 

[m80]

Only 2 engines in the 639 of that age, and you won.
Aside from an unreliable connection to such as the MAF I can only think of the EGR that might do this. Codes are the real way forward.

Your EGR is at the back and top right (n/s).

 

[ricasso]

Only 2 engines in the 639 of that age, and you won.
Aside from an unreliable connection to such as the MAF I can only think of the EGR that might do this. Codes are the real way forward.

Your EGR is at the back and top right (n/s).

Many thanks for the info, I've now ordered the ELM reader, should be here at the weekend, hopefully.