(Elect tech)Tach and speedo jumping around?
Thread Starter
Burning Brakes
Joined: May 1999
Posts: 865
Likes: 4
From: troy, mi
(Elect tech)Tach and speedo jumping around?
Completed a LS2 402 swap and now have issues with the tach and speedo jumping as if shorted quickly at random times, and it seems to be increasing in occurence.
Also, blew #22 fuse(Injr #1) once since initial startup, but has not occurred again in 20mi of driving. 60 total miles since 1st startup.
Does the injector #1 circuit have a relationship to the speedo/tach connections? Any ideas? Thanks!
Also, blew #22 fuse(Injr #1) once since initial startup, but has not occurred again in 20mi of driving. 60 total miles since 1st startup.
Does the injector #1 circuit have a relationship to the speedo/tach connections? Any ideas? Thanks!
Drifting
Joined: Jan 2005
Posts: 1,496
Likes: 28
From: San Dimas Ca.
No guru but
They are building a Holiday in Express close to my house so.... since you installed a new engine do you think you might have disturbed one of the grounds during the install? If the ground is loose obviously it's going to get worse. The only other I can think of is one of the connections not making complete contact. Pretty simple I think either the source or the destination (ground) of the electricity. Hope the engine is what you expected it to be, enjoy. 
Rick
Rick
