2009 Electra spark issues
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6th Gear
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From: Union Ky
I cant say Ive ever heard the fuel pump while cranking or after cranking. Once it primes I dont hear it again
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From: poway
That means the ECM isn't getting the cranking signal. The fuel pump runs for 4 seconds to prime the injector system them stops. As soon as the motor starts to spin it will turn the fuel pump back on and it stays on while the motor is running. This may not dump a code. It could also be the wire that goes from the run stop switch to the ECM or poor connection there. IIRC that might throw a code tho. Have you checked for codes? On a 09, you can dump them through the speedometer.
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6th Gear
Joined: Aug 2021
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From: Union Ky
That means the ECM isn't getting the cranking signal. The fuel pump runs for 4 seconds to prime the injector system them stops. As soon as the motor starts to spin it will turn the fuel pump back on and it stays on while the motor is running. This may not dump a code. It could also be the wire that goes from the run stop switch to the ECM or poor connection there. IIRC that might throw a code tho. Have you checked for codes? On a 09, you can dump them through the speedometer.
No codes, thats what puzzles me even more. I did replace the coil since it was ordered before I made this thread and once the gauge reads above 90 degrees the cranking issues start again
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From: poway
If the ECM seems to be functioning correctly, the big question would be:
When checking for spark, are you removing the plugs?
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6th Gear
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From: Union Ky
not removing the plugs when checking for spark. Using a spark tester. Once I can get the problem to start Ill put the spark tester on and crank it and no spark try 2-15 more times and it will spark and fire right back up then cut it off again and try to crank and the same thing no spark try another several times no spark then bam fire right back up. Its weird, sometimes it will spark and fire after 2-3 tires sometimes you will drain the battery trying. Theres no rhyme to the reason on how long it will take to fire back up its crazy
You mentioned the ecm not getting told to spark but Im guessing with no codes that ruled that out?
my buddy wonders if its the ecm itself or the temp sensor telling the motor not to start when its hot
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From: poway
gauge meaning the temp gauge. Getting the bike hot while Idling in the garage, once the gauge gets above 90 degrees or so and u cut it off the problem starts
not removing the plugs when checking for spark. Using a spark tester. Once I can get the problem to start Ill put the spark tester on and crank it and no spark try 2-15 more times and it will spark and fire right back up then cut it off again and try to crank and the same thing no spark try another several times no spark then bam fire right back up. Its weird, sometimes it will spark and fire after 2-3 tires sometimes you will drain the battery trying. Theres no rhyme to the reason on how long it will take to fire back up its crazy
You mentioned the ecm not getting told to spark but Im guessing with no codes that ruled that out?
my buddy wonders if its the ecm itself or the temp sensor telling the motor not to start when its hot
not removing the plugs when checking for spark. Using a spark tester. Once I can get the problem to start Ill put the spark tester on and crank it and no spark try 2-15 more times and it will spark and fire right back up then cut it off again and try to crank and the same thing no spark try another several times no spark then bam fire right back up. Its weird, sometimes it will spark and fire after 2-3 tires sometimes you will drain the battery trying. Theres no rhyme to the reason on how long it will take to fire back up its crazy
You mentioned the ecm not getting told to spark but Im guessing with no codes that ruled that out?
my buddy wonders if its the ecm itself or the temp sensor telling the motor not to start when its hot
If the ECM doesn't get the crank pulse, it doesn't know that anything is wrong. It simply waits for the pulse.
Since you hear the fuel pump run at key on or R/S switch toggle but don't hear the fuel pump run after cranking, it's either the CKP sensor or the voltage that the ECM senses during cranking is too low. I'd check the wiring to make sure it's not damaged. I'd also check the battery voltage while cranking to see if it drops below 9.5 volts.
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6th Gear
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From: Union Ky
Well, I kinda figured that it was a temp gauge but but which one. Ambient, Oil, Engine?
If the ECM doesn't get the crank pulse, it doesn't know that anything is wrong. It simply waits for the pulse.
Since you hear the fuel pump run at key on or R/S switch toggle but don't hear the fuel pump run after cranking, it's either the CKP sensor or the voltage that the ECM senses during cranking is too low. I'd check the wiring to make sure it's not damaged. I'd also check the battery voltage while cranking to see if it drops below 9.5 volts.
If the ECM doesn't get the crank pulse, it doesn't know that anything is wrong. It simply waits for the pulse.
Since you hear the fuel pump run at key on or R/S switch toggle but don't hear the fuel pump run after cranking, it's either the CKP sensor or the voltage that the ECM senses during cranking is too low. I'd check the wiring to make sure it's not damaged. I'd also check the battery voltage while cranking to see if it drops below 9.5 volts.
Its the stock gauge showing the ambient air around the engine temp, I havent changed it out to anything more useful yet. I did however change the Crank position sensor (CKP) a week or so b4 the coil and still had the issue. Ill check the wiring and the battery voltage this weekend and see if I can track down the issue. Thanks for all the advice
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