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Discussion Starter · #1 ·
Dear All,

Please help as getting very fed up with my 1.4 HDi intermittent excessive black smoke issue:

ONLY occurs when engine warmed up

I have:

- all filters changed, cambelt etc
- knocked cat through as was blocked
- checked EGR OK
- read fault codes

Falut codes were intermittent air flow meter fault, intermittent acc pedal position. These were cleared and didnt reappear again while we were testing for an hour.

I was toying with getting a new MAF as if intermittent sending wrong temp reading or air flow reading to ECU it could end up over fueling. What you think?
 
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