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4.8 to LQ4 Swap. No spark

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Old 02-22-2011, 12:35 AM
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Complete write for the OS swap.
I'm also not reading RPM while cranking but if there's no power at the coils you wouldn't would you?
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Old 02-22-2011, 10:07 AM
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Any more suggestions?
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Old 02-22-2011, 10:23 AM
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Originally Posted by viciousknid
Complete write for the OS swap.
I'm also not reading RPM while cranking but if there's no power at the coils you wouldn't would you?
Not sure on that one...I'd *think* that as long as the engine is spinning and the sensors are hooked up it would see a signal but I'm just guessing...kinda though that it was the other way around, without an RPM signal the PCM won't fire the coils...
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Old 02-22-2011, 10:27 AM
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I'd hate for it to be the reluctor wheel somehow getting damaged. that would just suck.

He's bringing his voltmeter out today. Does anyone know what the OHMS should be on the CPS?
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Old 02-22-2011, 10:30 AM
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ground wire on the side of the block near the power steering pump hooked up?
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Old 02-22-2011, 11:36 AM
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Yup. I may have him unhook all grounds, clean them and try again
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Old 02-22-2011, 06:08 PM
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Checked the CPS again and this time 2 wires pulled out of the connector. Slapped another one on and it fires right up. Lol

Thanks guys for all your help. That's what I love about this site
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Old 02-22-2011, 08:38 PM
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Glad u got it goin bro!!
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Old 02-22-2011, 08:48 PM
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Where is that sensor located? Is it the one by the starter?
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Old 02-22-2011, 11:40 PM
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Originally Posted by ap2002
Where is that sensor located? Is it the one by the starter?
Yes up above the starter to the rear of the block just below the cylinder. NOT the big one on the pan. The one on the pan is for the oil level.
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