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2016 XC90 Check Engine Light P0300 P0302 Misfire at 60k miles

7.6K views 8 replies 5 participants last post by  YHB  
#1 ·
My 2016 XC90 T6 just got a CEL for P0302, which caused shaking when accelerating, running slow with a turtle sign (Engine System Reduced Performance).

I just replaced two spark plugs and the ignition coil, but the problem still exists. What else I can do? The next thing should replace or clean all 4 fuel injectors?

Because of the Extended Warranty for Excessive Oil Consumption (another issue of this SUV), it will take at least 2 weeks to a month to schedule an appointment with the local dealer. Is it safe to drive while the CEL is on?
 
Discussion starter · #6 ·
You've got two issues you're contending with.

1. Spark Plug Recall where Plugs could Fragment and Trash Engine... So Possibility #1

To: All U.S. Volvo Retailers
Subject: Service Action S29842
Volvo Car USA LLC on behalf of Volvo Car Corporation, has decided to launch Service Action
S29842 on certain model year 2015 – 2016 XC60, S60, V60, S80, XC70 & 2016 XC90
Volvo has identified that the spark plugs may crack due to abnormal combustion.
The corrective action is replacement of the spark plugs with a new and improved design, per the
VIDA instructions located in the VIDA path below.
Information – Repair - Removal, Replacement and Installation - 2 Engine With Mountings and
Equipment, - 281 Ignition Coil, Spark Plug, Ignition Cable - Spark Plugs

2. Oil Consumption from Piston Rings. Either needing New Rings or Engine Could be scored.

Could be something else, too....But #1 could have happened if you never had plugs swapped under recall.
Thanks for the Info. Hmmm... I don't think I received the Spark Plug recall back in 2017... And I checked with Volvo USA I don't have open recalls.