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Mend Peugeot 406 HDi GLX Power Driving

Peugeot 406 HDi power loss?

I have a 2002 Peugeot 406 HDi GLX. Up until recently, it has been driving fine. It has always been punchy, responsive and quick... About a week ago, I have noticed a reduction in the performance; it accelerates, but not as well as it used to, infact it feels like I'm towing a trailer or a caravan ! It gets upto 80 - 90 mph, and sits there comfortably, but seems to take an age to do so. I've not noticed any reduction in fuel economy, lumpy running, black smoke ( the general things you associate with injector problems ) and the car appears to run fine, its just this 'diminished' performance that's puzzling me. Can anyone help ??

406GLX
April 2009
get youre fuel filter checked first and have a look at the air filter seems simple but i had the same problem some times the fuel filter takes in some water

paddy323
August 2010
had same problem after reading previous answer tried air flow meter and woked perfect

stuart
June 2010
I also have a 406 HDi on an X plate. I had the same problems with acceleration and have just recently disconnected the lead attached to the air flow meter. Touch wood it seems to have cured the problem.

Not sure if it is ok to run the car for a long period with the lead disconnected though. I suspect I will have to replace the air flow meter next.

Quickboy
April 2010
Check airflow meter, fairly certain it is that

hhddii
May 2009

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