Ignition Module Failure,what causes it?

[greeneyegi]

ordered new crank sensor,we will see the verdict,thanks for advice

 

[greeneyegi]

replaced the crank sensor,and it didnt start,hopefully tomorrow the used ign module will work

 

[TurboBuRick]

Damn, same day delivery?

Does it show any signs of wanting to start??

 

[greeneyegi]

Same exact thing,injector pulse with no spark

 

[TurboBuRick]

Pull a spark plug and snap a pic. Post it up.

 

[greeneyegi]

View attachment 191890View attachment 191890View attachment 191890View attachment 191891View attachment 191890View attachment 191891

View attachment 191891
heres one plug

 

[TurboBuRick]

They are dry as a bone. You're not getting fuel.

 

[TurboBuRick]

Give it a shot of starting fluid and see if it kicks.

 

[greeneyegi]

its not fuel,thats after not having tryed to start it since yesterday,im positive im getting fuel,i just went and turned it over a bit and pulled a plug,its wet.

 

[TurboBuRick]

Unplug the module. With key on test for power on pins P and M of the module plug.

 

[greeneyegi]

yup 11.76vdc

 

[greeneyegi]

i also checked for good grounds through the L,G,and D terminals of the control module.its good ground through it.

 

[greeneyegi]

craigslist guy flaked on me for the moment,so until later this week im waiting for another icm.
so in "theory"if i put 12v to the M&P terminals and ground the icm.spark plugs and wire on coils,ground on plug.jump the K,L(camsensor),then tap crank sensor B-C it should spark a plug?

 

[TurboBuRick]

The crank senor is F,G & H. I don't know if that would work or not. Never tried jumping the signal. I just crank the motor.

I can tell you the crank sensor is for spark and the cam sensor is for injector pulse. It makes no sense to me how you can have injector pulse and no spark.

Try this, disconnect the coil pack from the module. Put a test light between the Blue and any of other three wires. Crank the motor the test light should blink.

RL

 

[greeneyegi]

The crank senor is F,G & H. I don't know if that would work or not. Never tried jumping the signal. I just crank the motor.

I can tell you the crank sensor is for spark and the cam sensor is for injector pulse. It makes no sense to me how you can have injector pulse and no spark.

Try this, disconnect the coil pack from the module. Put a test light between the Blue and any of other three wires. Crank the motor the test light should blink.

RL

no light.

 

[TurboBuRick]

Then the module is faulty.

 

[greeneyegi]

I had to do a search on ebay with the OEM part # for mine. It was new but no box. BE CARFUL when placing the leads back on the coil pack. I bent mine a bit to clean the contacts off and when I went to attach the ign mod wires the tabs broke off. I solder the wire to the coil pack and it works but its hard wired now.
OEM# 25526449. I know there several "different" #'s for this ign mods but I made sure the one I got was AC Delco and #25526449 was on it.

where can i purchase one of these #25526449 ac delco models?

 

[greeneyegi]

i picked up a used,original acd elco module today,i put a good coil and pow i got spark.only problem now is it acts like the timing is advanced when i try to start it.i checked the battery voltage it was 11.7.so i put it on charge.ill pull the plugs tomorrow and spin er over a bit then put plugs back in.any idea what would make it turn over like that?it acts like vapor lock..at least i got spark guys,thanks for help.

 

[greeneyegi]

what kind of ignition module is this?my cars plug goes directly into the module,this one dosnt.

 

[kidglok]

that looks like a conversion plug for a hot air to use the 86-87 coil/module.