2012 Challenger over boost shutdown P0108

Has anyone been able to get their Challenger to boost beyond 195kpa without the car shutting down on them? We lose throttle when this happens. We cannot raise max map in Engine Diag or else the problem will get worse. I believe this has been talked about before but no solution was brought to light. Possibly a table I need to request to be defined? Watch in the log as the Pratio, map, map(SAE), and the map voltage go haywire the instant the map reading steps past the 195kpa limit which we are limited to. About 4:27 into the log.

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Originally Posted by drumnbasslvr

Has anyone been able to get their Challenger to boost beyond 195kpa without the car shutting down on them? We lose throttle when this happens. We cannot raise max map in Engine Diag or else the problem will get worse. I believe this has been talked about before but no solution was brought to light. Possibly a table I need to request to be defined? Watch in the log as the Pratio, map, map(SAE), and the map voltage go haywire the instant the map reading steps past the 195kpa limit which we are limited to. About 4:27 into the log.

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Start at post 7

https://forum.hptuners.com/showthrea...h-supercharger

Thank You! Yes a 3 bar map sensor is a solid answer for now. We are pegged at 195 kpa yet still but no shut downs occurred. The map sensor voltage is tamed to the range of 3.8 volts at wot now in a long pull.

Good to hear you're moving forward. Remember to come back and share if you can add some knowledge.

Quote:

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Originally Posted by drumnbasslvr

Thank You! Yes a 3 bar map sensor is a solid answer for now. We are pegged at 195 kpa yet still but no shut downs occurred. The map sensor voltage is tamed to the range of 3.8 volts at wot now in a long pull.

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What MAP Sensor Linear value and MAP Sensor Offset value did you use with the 3 Bar MAP sensor?

you download an SRT4 tune from the repository...... and look at the Linear Value and Offset to get the values to use with the 3 Bar MAP sensor.