used to work fine. I checked today and no voltage to the injector. anyone know where the fuse or wiring issue might be?
have 3FE. The cold start injector no voltage
- Thread starter Two 3FEs
- Start date
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Cold start injector timer switch working?
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- #3
where is that timer switch located? thanks. I was wondering about the temp sensor also.
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- #5
great thanks. how would I check the voltage going through that Time Switch? or is it a Continuity thing when cold?
I haven't had to mess with this part for about 5 years. Might need to check the wiring connections.
I haven't had to mess with this part for about 5 years. Might need to check the wiring connections.
It should be continuity while cold. The CSI is energized by the starter solenoid and grounded by the timer switch if then engine is cold. If the engine is hot the switch will be open, so no current flows though the injector
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- #7
maybe yesterday's check the engine was still a little warm. Indicator on dash read at the bottom though. I'll check continuity after it stops raining. It's 45F right now.
Thanks for the help.
Thanks for the help.
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- #8
I have continuity at the Temp Sensor. Does the wiring go somewhere else before hitting the cold start injector?
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- #9
where's that timer switch located? thnx
Please see post #4.
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- #11
OH yeah. there is continuity across that switch. How can I check to see if its grounded ? back to starter?
This is what you're looking for. As you can see, the CSI is just an injector, so you'll always read continuity across the coil. The ECU will ground the CSI depending on coolant temperature. The CSI Time Switch is energized from the starter circuit, but it is the ECU that fires the CSI when needed. Once you release the key from the START position, the CSI and time switch are out of circuit.
