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gm map sensor Help

Old Dec 29, 2022 | 09:19 PM
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looking for help on gm map sensor 12614973 would this be a 1 bar or 2 bar sensor ? Using in a N/A Ls application using terminator x ecu ,drop down menu shows gm 12644228 I bar on Holley terminator x menu hopefully can configure in the Holley if this is a 1 bar sensor . Thanks
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Old Dec 30, 2022 | 01:45 AM
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You could but the onboard map sensor in the terminator works great..
I used a un-used bung on the passenger side towards the rear of the factory intake manifold, you just twist the plastic T plug off. (Truck manifold. )
I used a piece of heavy wall black silicone vacuum line to run to the ECU.
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Old Dec 30, 2022 | 02:29 AM
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Originally Posted by pdxmotorhead
You could but the onboard map sensor in the terminator works great..
I used a un-used bung on the passenger side towards the rear of the factory intake manifold, you just twist the plastic T plug off. (Truck manifold. )
I used a piece of heavy wall black silicone vacuum line to run to the ECU.
I don't intend to hijack, but @pdxmotorhead would you be so kind to expound on this T plug?

I have an early TBSS manifold on my build that appears to have what you describing (pass side, about 2/3 of the way towards the rear); I had no idea this would twist off and provide an additional vacuum/boost port. Is this correct?



Thanks for your input!
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Old Dec 30, 2022 | 08:46 AM
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thanks great tip by the way but want to use external map sensor
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