PRANCING MOOSE

Hey guys,

I'm a long time reader, but first time poster.

Twice my 2013 Boxster S has thrown warning lights for PSM fault and auto start/stop. Both times it was accompanied by codes for soft shutdown on cylinder #6 (P2317 & P0356). So it seems pretty clear that I am going to need a new ignition coil...

Based on other threads about coil replacement, it seemed like I could get away with just replacing the coil on #6, but as I was about to buy a couple of Beru coils (one for cylinder 6 and the other just in case) I saw this on Pelican's website:

Important Note: Although these coils are sold "each", they should be replaced as a full set.

Do I really need to replace all six? Would it cause any problems if I just do one?

Thanks,
Kyle

nhnguy12

You can replace them one by one. When my car was under CPO, Porsche would only replace the one coil that blew each time. Eventually had 4 of them go one by one which was pretty annoying making that many trips to the dealer. Now I replace them all on the same schedule as the sparkplugs and I haven't had a problem since.

IndigoInkTaco

Yea just replace the bad one. Like anyone selling a product, they want you to buy more than necessary. There'll always be two groups of people; one that replace items preemptively and ones that replace as needed. I fall under the "if it aint broke,, dont fix it" crowd.

toma nova

How many miles and have you replaced plugs yet? If due, I’d replace plugs and coils at the same time and keep an old coil or two as spares.

Larson E. Rapp

Why in the world wouldn't you replace them all after one has failed, given how cheap they are?

PRANCING MOOSE

Thanks for the feedback guys. I'm going to start by just replacing the ignition coil on number 6.
The plugs were changed at an indy by the last owner 7k miles ago (1yr), so they have quite a bit of life left. If the plugs were due for replacement, I would change all the ignition coils too.

After watching a couple of videos on swapping plugs, I am not exactly eager to replace all the coils and plugs. Luckily, it seems like cylinder 6 (drivers side closest to rear bumper) is pretty accessible.

IndigoInkTaco

What are the odds!... Driving home last night, I got the psm/ecu soft fault and engine misfire. Gotta scan it today and see which one(s) failed.