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Trying to fix P0440 issue... V70-XC70 1998

posted by  someone claiming to be Moe on  Mon Feb 8 04:00 CST 2010 [RELATED]

I don’t see the reason for installing ‘sensors’ that generate erroneous
or misleading information. P0440 can be triggered by a host of
different things. This code is very generic and does not effect the way
engine runs. Some folks have gone
to their dealers numerous times and still have this code.
The only real CEL of value is the one pointing to MAP of MAF sensor,
as these can dramatically affect engine performance. Heck, engine won’t
even run…But, all the other codes are crap generated only to make
profit for mechanics…and parts sellers…






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