Low compression and neg fuel trims

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May 21, 2016 | 11:57 AM

richi914

Thread Starter

Junior Member

Joined: Oct 2008

Posts: 12

Low compression and neg fuel trims

Outlander 2005 Low compresion 130, 170, 135, 130 can be the cause of negatives long term fuel trim -7 to -9?

May 24, 2016 | 08:14 AM

pwrusr369

Junior Member

Joined: May 2016

Posts: 9

From: northeastern Pennsylvania

low compression

Quote:

Originally Posted by richi914

Outlander 2005 Low compresion 130, 170, 135, 130 can be the cause of negatives long term fuel trim -7 to -9?

My first thought is worn piston rings leaving unburnt fuel in combustion chamber accounting for neg fuel trims but neg trims on all cylinders I wanna say no it's head gasket I believe it's one or other

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