VATS issue - 3800 L27 to L67 - $5B4 $5B5

[dan_t]

So I just tried a MAF from the same car I pulled the Prom from (93 supercharged) and it barely runs.

I have some gas and a box of matches, anyone got marshmallows?

[dan_t]

Are you able to see from the xdf how or if the MAP sensor is used? I can see it goes to the dash and then the pcm outputs a duty cycle to the boost solenoid but does it have any effect on fueling?

[RobertISaar]

from what i'm looking at in the wiring diagrams, the MAP sensor isn't connected to the PCM at all, only the dash for the function of the boost guage.

this resonates with what i've been told about the early L67s in that there is no MAP or barometric component, regardless of being N/A or boosted.

boost pressure is entirely controlled by the supercharger itself and should the PCM detect the LV8 as being too high, it will start controlling the boost solenoid to drop off cylinder airmass.