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RPM gauge not steady, yet RPM's are solid


scottinalaska
Junior Member
676/1000


Galant VR-4 org Post #: 1234196 posted 12/16/16 03:19 PM     Remind Me!  Send Private Message   Edit Post      
What causes this bouncy needle. It mostly happens at idle where I am sitting at 800rpm and the needle will bounce up to 1200 and back again, yet the engine sounds very solid. It is more solid as I rev it, but the needle doesn't stay dead on at all like other gauges I have observed. Thoughts?

Posts: 47 | From: Alaska, USA | Member Since: 11/15/16 | IP: (24.237.106.213) | Report this post to a Moderator

FlyingEagle Galant VR4.org Moderator
Eager Beaver


Galant VR-4 org Post #: 1234208 posted 12/17/16 01:48 PM     Remind Me!  Send Private Message   Edit Post      
For giggles, unplug your transistor pack and tell me if you see green in the connections or if the plastic housing is broken and allowing any possibility of moisture intrusion.

Still using the 1G 91+ transistor assembly I assume?



C53A 1 of the ~1500


Edited by FlyingEagle (12/17/16 01:49 PM)

Posts: 1631 | From: THE Ottawa | Member Since: 03/05/05 | IP: (99.224.194.77) | Report this post to a Moderator

scottinalaska
Junior Member
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Galant VR-4 org Post #: 1234215 posted 12/17/16 09:44 PM     Remind Me!  Send Private Message   Edit Post      
Man, I'll assume it is still the original...but I don't know where it is located. Is the transistor pack another word for the coil pack?

Posts: 47 | From: Alaska, USA | Member Since: 11/15/16 | IP: (24.237.106.213) | Report this post to a Moderator

tektic
Senior Member


Galant VR-4 org Post #: 1234220 posted 12/18/16 09:27 AM     Remind Me!  Send Private Message   Edit Post   
Something is from an older model coil pack transistor or ecu . Check part number on ecu.



7 1G DSM's now a GGSX build.

Posts: 1499 | From: ronkonkoma, ny | Member Since: 12/19/12 | IP: (47.20.56.49) | Report this post to a Moderator


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