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DTC 0021


Galant VR-4 org Post #: 1249394 posted 07/26/20 12:18 PM     Remind Me!  Send Private Message   Edit Post      
92 Galant VR4 168/1000
Link v3 SD

Coolant temp reads -74 constantly.

Have a CEL
0021 code

I installed a New sensor, cleared codes and CEL
comes back on after a couple minutes.

Yellow/Green wire & Green/Black wires both have continuity from sensor plug to ECU plug.

Anybody have ideals?????

Edited by SoJerz168 (07/26/20 01:56 PM)

Posts: 2 | From: 08054 | Member Since: 05/11/09 | IP: (2601:88:8081:f0:) | Report this post to a Moderator

I ain't no puny human

Galant VR-4 org Post #: 1249397 posted 07/27/20 06:26 AM     Remind Me!  Send Private Message   Edit Post   
That issue is all over this site (and DSM sites). Look at your wiring to the Coolant Temp Sensor on the thermostat housing. Either a disconnected connector or broken wire.

(SOLD) 866/1000 (PTE 1200's, billet 20g+, DSMLink v3, eagle/ross, .020 over, 272's, GC/AGX Coilovers)

Posts: 907 | From: Indianapolis, IN | Member Since: 09/24/14 | IP: ( | Report this post to a Moderator

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