Intermittent overheating - long story…

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May 31, 2022 | 01:48 PM

#11

NVDiscovery

Rock Crawling

Joined: Feb 2015

Posts: 338

Likes: 63

From: Upstate South Carolina

You have ECT 150-170F? My understanding is that the ECU will run rich if you are running below 180F in a D2. That would kill your fuel economy and potentially mess up your cats.

May 31, 2022 | 02:16 PM

#12

Extinct

Baja

Joined: Feb 2013

Posts: 5,268

Likes: 1,809

From: Lynchburg VA

Quote:

Originally Posted by NVDiscovery

You have ECT 150-170F? My understanding is that the ECU will run rich if you are running below 180F in a D2. That would kill your fuel economy and potentially mess up your cats.

Not correct, Disco ECU runs closed loop fueling at stoich at any temperature after the first 1-2 minutes.