Jeffrey 34 Posted Friday at 02:15 PM Share Posted Friday at 02:15 PM 2006 Mack vision with aset engine ,have a 2-8 code cegr sensor ,are those the two sensors in the crossover tube and do you replace them as one unit since they tie together in the back of em or do you splice the wire. Quote Link to comment https://www.bigmacktrucks.com/topic/75746-mack-aset-code-2-8/ Share on other sites More sharing options...
fjh Posted Friday at 03:11 PM Share Posted Friday at 03:11 PM You got to buy the tube! Egr cooler leaking ?check it first ! Quote Link to comment https://www.bigmacktrucks.com/topic/75746-mack-aset-code-2-8/#findComment-578483 Share on other sites More sharing options...
Mackpro Posted yesterday at 02:39 PM Share Posted yesterday at 02:39 PM The 2-8 code is for the intake manifold temp sensor not the EGR mass flow and temp assembly Quote Link to comment https://www.bigmacktrucks.com/topic/75746-mack-aset-code-2-8/#findComment-578613 Share on other sites More sharing options...
Mackpro Posted yesterday at 03:11 PM Share Posted yesterday at 03:11 PM There are 3 of these 64MT450A temp sensors on the AC engine. The 2-8 code is for the sensor that screws into the intake manifold itself , not the one above it on the angled pipe coming from the aftercooler . If either of the two on the driver side of the engine fail there is a new updated part number 64MT485 that will replace them. If the compressor discharge temp sensor ( sensor on the pipe between turbo and after cooler passenger side )failed then you have to use the original part number. Mack service bulletin SB273013 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75746-mack-aset-code-2-8/#findComment-578616 Share on other sites More sharing options...
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