Vehicle & Technical > Discovery

MAF Sensor

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td5disco:
mhk100640

Hightower:
On testbook today, lots of error codes:
- Low inlet pressure
- Over boost
- Overheat
- etc

Too many to make any sense of.  So cleared them all and took the car for a 10 min drive.  In true LR fashion got back, plugged in testbook again, and NO codes!!!  Aaaaaaaaaaagh!!!

It's going back next week for a service, so hopefully something will have errored by then  [-o<

Hightower:
After neary a month, got an error code logged when we checked today.

EGR Valve Modulator is faulty.

Off to H@rtwells tomorrow and we'll see if we can get back up to 28mpg.  Fingers crossed.

Range Rover Blues:
I wouldn't expect EGR to afversly effect either the MPG or cause the black smoke you describe but I do remember reading an interesting article in one of the comics this month about a staff car that had the same problem (freelender I think) and you initial diagnosis was correct in his case.

Hightower:
Well, I changed the EGR valve modulator, and it doesn't seem to have made much difference at all over the past couple of weeks.

Having read a few bits 'n pieces on the web, the symptoms I am getting could be caused by one of the injector sealing washers beginning to fail.

How likely do you think this is?  There's still nothing on testbook of any note.  Do you think that it is worth looking into?

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