Had an SEL come on last night in conjunction with a momentary surge of power. Checked for error codes this morning and had 4, multiple misfires and misfires on cyls 3,5 and 7. Is there something that can trigger misfires in multiple cylinders? ......(coil?)

 

Upstream O2 sensor since all three are on the same cylinder bank. I'm surprised number one didn't also misfire. Is the light on steadily or is it flashing?

 

It started out flashing then it went steady.

 

Seafoam induction cleaning cleared my O2 issue and 1,3,5,7 misfire codes even after I had replaced the upstream one. $6 fix

 

Which seafoam product did you use, and how did you do it?

 

https://landroverforums.com/forum/di...ocedure-33554/

 

Thanks.