Hey guys, i plan on picking up a zr1 map sensor to toss in my 2011 sierra 5.3 with a tvs1900 at 9psi. When I installed the s/c, i had to disable the map sensor high volt test and the map sensor high voltage dtc since boost was spiking the oem map sensor. When I install the zr1 sensor, should I go back and re enable those when I change the linear and offset values?
Anyone?!?
yes and you need to recalibrate your tune for the new map sensor.
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68 Farm Truck build thread-LS3/6L80/TVS1900: http://67-72chevytrucks.com/vboard/s...d.php?t=358692
You should leave P0108 enabled, and also leave the high voltage test enabled when you are using the LS9 MAP sensor. P0108 trips when you exceed 4.9v on the signal for more than four seconds. If you're doing that with the LS9 MAP sensor, then you're making about 30psi boost as opposed to the 9psi that your TVS puts out.
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Thanks guys!
Threw the sensor in today with the correct data. Re-enabled the high volt test and p0108...all is good!
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