View Single Post
Old 11-27-2025, 05:16 PM   #2
LS short box
Registered User
 
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,591
Re: PCM location - how protected does it need to be?

Can't speak to where to hide the ECM in the engine compartment but the ECM is totally weather proof. My 98 Wrangler has a LS6/4L60E swap. Did it 16 years ago. It's my summer time around town cruiser. I plow my driveway with in the winter. Just did that last night. Zero issues with moisture.
ECM is mounted under the brake booster. Fuses/relays on the firewall. Pics.
Attached Images
  
LS short box is offline   Reply With Quote