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Re: ECM-B fuse blowing, please help!
Quote:
Originally Posted by The Big Green
What will this tell me?
Posted via Mobile Device
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In theory, the test light should not illuminate because there is no ground in the circuit, due to the other side of the light being connected to a positive source. Now if a wire were shorted to ground, then the light should illuminate.
In other words:
No light = good....no short
Light = bad....short somewhere and you gotta find it
You might wanna check the owner's manual though. There's probably more stuff connected to this fuse other than the fuel pump. Chevy likes to connect 3 or 4 things to one fuse for some odd reason.
__________________
-1967 Chevrolet Fleetside LWB- 350 V8 w/thumpr cam, NV3500, 3.08 gears, A/C, PS 
-1983 Chevy Silverado C1500- 383 stroker, TH400
-1989 Chevy Silverado K1500 SWB- 5.3L swap, 700R4, 3.42 gears
-And a '66 Ford Mustang- 200 I6, C4 trans, rust bucket
"The only thing we have to fear is fear itself." -FDR (and maybe rust too) 
You've gotta be able to stop and steer before you can go fast!
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