Poor fuel economy ( help please )

[haydar alameen]

A garage can check the back-pressure at the Lambda sensor points

Unfortunately I don’t have this option in my region, can the value of ( load) in inpa be useful?


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[Timm]

No, but if you can get under the car giving the cats a good clout with the side of your hand may reveal a rattle which is the death-nell for cats....

[haydar alameen]

No, but if you can get under the car giving the cats a good clout with the side of your hand may reveal a rattle which is the death-nell for cats....

Ok , if it not present ( the rattle ) can I use cleaner , I bought Liqui Moly cat cleaner . I mean there is any benefit ?


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[Timm]

They usually melt or break-up, neither of which a cleaner will have any affect on.....

[haydar alameen]

Update : after using catalytic system cleaner by intake , I have better fuel economy city about 4.5 km / l ~ 11 mpg , highway 7-7.5 k/l ~ 18 mpg which is better about 10-15 %


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[haydar alameen]

No, but if you can get under the car giving the cats a good clout with the side of your hand may reveal a rattle which is the death-nell for cats....

Pleas Timm what this data means , air needed by icv > from total air consumption? IMG_2646.jpg


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[Timm]

All explained here:

https://www.meeknet.co.uk/E38/Diagnostics.htm

[haydar alameen]

All explained here:

https://www.meeknet.co.uk/E38/Diagnostics.htm

Thanks a lot , dear I have no vacuum leak ( by smoke test ) but the hlm value is :


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