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P1690 is a Wastegate Control Valve Malfunction code and P0470 is Exhaust Back Pressure Sensor Circuit Malfunction. Neither of those should cause a no-start condition. No GEM codes will cause a no-start either.
I would check your wiring to the ICP and IPR to make sure there's not a short and each wire has continuity.
 

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P1690 is a Wastegate Control Valve Malfunction code and P0470 is Exhaust Back Pressure Sensor Circuit Malfunction. Neither of those should cause a no-start condition. No GEM codes will cause a no-start either.
I would check your wiring to the ICP and IPR to make sure there's not a short and each wire has continuity.
A shorted back pressure sensor will absolutely cause a no start. Unhook the wire from the sensor and see if it runs.
 

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A shorted back pressure sensor will absolutely cause a no start. Unhook the wire from the sensor and see if it runs.
You're absolutely right. The sensors share a common signal circuit to the PCM, and if shorted will throw everything, including the ICP sensor signal off. I had forgotten about that.
 

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Discussion Starter #44
Well i tried unplugging it but my batteries were near dead with a no srart. Think i will pull them charge both and have load tested. They are only a couple yesrs old but i have been really hard on them lately.
 
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