I have a 99 GMC Yukon. The ECM 1 fuse blows every couple of weeks. I
replaced the fuel pump at the suggestion of my mechanic, yet I am still
having problems with the fuse blowing while driving down the road every so
I had the ECM fuze blow on my 92 K1500k, turned out to be one
of the wires feeding the injectors grounding out on the air clearner
On the 92 model and similar year models the 4 wires that feed the two
TBI injectors can get crimped between the air clener housing and the
throttle body...over time they can ground out. I would have never
given this much thought before, but when it happend to me I asked
around and sure enough its a common problem. (at least to the GM
I too repalced my fuel pump on a roll of the dice "fix", which was
worth doing but did not fix the problem.
On Fri, 15 Apr 2005 21:32:18 -0500, "Jason Norred"
AHHH! A wire that went down to the crankshaft position sensor was randomly
touching the exhaust manifold and grounding out. Easy fix! Should have
checked that before replacing the fuel pump. Oh well... lesson learned!
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