98k1500 No Spark after motor rebuild
Hello I need some help please. I had motor rebuilt. Got it back in and cranks but no spark. Checked no spark at coil. I replaced coil and ignition module, crank position sensor as part of rebuild. I did the variable steering sensor delete as per gm latest so that plug is left unplugged.
I tested the pink wire on cps and read 12 volt. Purple wire did not, .4 volt.
I did notice a security light on when turning key to first position, but it doesn't stay on.
I am stumped on what to test next. Hopefully someone can steer me in right direction.
Thanks
I tested the pink wire on cps and read 12 volt. Purple wire did not, .4 volt.
I did notice a security light on when turning key to first position, but it doesn't stay on.
I am stumped on what to test next. Hopefully someone can steer me in right direction.
Thanks
Hello I need some help please. I had motor rebuilt. Got it back in and cranks but no spark. Checked no spark at coil. I replaced coil and ignition module, crank position sensor as part of rebuild. I did the variable steering sensor delete as per gm latest so that plug is left unplugged.
I tested the pink wire on cps and read 12 volt. Purple wire did not, .4 volt.
I did notice a security light on when turning key to first position, but it doesn't stay on.
I am stumped on what to test next. Hopefully someone can steer me in right direction.
Thanks
I tested the pink wire on cps and read 12 volt. Purple wire did not, .4 volt.
I did notice a security light on when turning key to first position, but it doesn't stay on.
I am stumped on what to test next. Hopefully someone can steer me in right direction.
Thanks
I still have a cps code p1345. Crank shaft position sensor camshaft position sensor correlation. Probably out of timing. Anyone' know what might cause it
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mfre111
Silverado, Sierra & Fullsize Pick-ups
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Jun 2, 2012 9:46 PM




