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no check engine light no spark

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crashedout1

Active Member
Joined
Feb 23, 2011
Messages
439
my 84 got new coil /module 87 upgrade caspers new crank sensor 87 no spark and no check engine light?? bad ecm this thing is killing me oh cam sensor tab not broken wheel doesnt spin freely cranks fine gapped crank sensor at .025 but seems like when i rotate crank clearance is different in spots? hmmm
 
check the ecm fuse.. if that's good, check the orange wire from the battery.
if that's got power, check where the wires plug into the ecm.. mine had a clogged heater drain, which caused water to drain right on top of the ecm, which caused the pin in the ecm that gets power from the orange wire to corrode and break off from the ecm, which led to no pwer to the ecm, which led me to get an 87 ecm from a junkyard and a turbotweak chip..
 
ok checked fuses ecm is fine and ignition fuse blew got it to stumble once after running a wire from module body to ground cause bracket has fresh paint was gonna clean off paint but it started raining and water was blowing in front of garage still no check engine light it didnt work even when car was running:confused: gonna test it today
 
ok check engine bulb was burned iterupter ring was bent and rubbing tweaked crank sensor installed new 87 crank sensor cranked cranked and bang! backfired like a quarter stick of dynamite and thats it no spark cam sensor turns when cranking has slop when you turn it back and forth is that normal? im gettn frustrated that 350 crate engine is starting to look good
 
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