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4 Posts
Hello,
Have a 2014 Focus SE that keeps running through ignition coils. Started within the last few months.
At first threw a few codes (p301 / p0118) & ended up replacing the ignition coil & spark plug for cylinder 1. Replaced the coolant sensor too.
I noticed when its damp outside the temp gague was going up / down wildly, but everything seemed to go back to normal after replacing those 3.
I left the state for a week and it rained a few times - When I get home & its misfiring / throwing p301 code again. I switch the ignition coils around and get it to follow the coil (starts throwing p302 /p303 etc as i move the coil down the engine). No other codes
Makes no sense since i just replaced it a month ago but whatever. Took the coil back and got a new one. Maybe faulty.
Decided to put an older ignition coil back on cylinder 1, and keep the new one in another cylinder.
It starts raining today, and i get p301 again. Did the whole BS of moving coils around and it just follows that coil.
Now what?
Only commonality is after it rains cylinder 1 gets it rough and shorts out the coil?
I did get a bunch of codes initially today (p0118/p0351/p2300/p301). After driving to get the check engine light to come on, they disapperared and i was just left with p0301.
The temp gague was going up & down wildly while driving though.
Where should i even start to narrow this down? Once I get a new coil itll run fine till it rains again
Have a 2014 Focus SE that keeps running through ignition coils. Started within the last few months.
At first threw a few codes (p301 / p0118) & ended up replacing the ignition coil & spark plug for cylinder 1. Replaced the coolant sensor too.
I noticed when its damp outside the temp gague was going up / down wildly, but everything seemed to go back to normal after replacing those 3.
I left the state for a week and it rained a few times - When I get home & its misfiring / throwing p301 code again. I switch the ignition coils around and get it to follow the coil (starts throwing p302 /p303 etc as i move the coil down the engine). No other codes
Makes no sense since i just replaced it a month ago but whatever. Took the coil back and got a new one. Maybe faulty.
Decided to put an older ignition coil back on cylinder 1, and keep the new one in another cylinder.
It starts raining today, and i get p301 again. Did the whole BS of moving coils around and it just follows that coil.
Now what?
Only commonality is after it rains cylinder 1 gets it rough and shorts out the coil?
I did get a bunch of codes initially today (p0118/p0351/p2300/p301). After driving to get the check engine light to come on, they disapperared and i was just left with p0301.
The temp gague was going up & down wildly while driving though.
Where should i even start to narrow this down? Once I get a new coil itll run fine till it rains again
