Pcm Valve

[Samuel Leonard]

Does the ecu control the PCM valve? Or just monitor what it's doing? When my car warms up fully, the boost drops back a few psi and feels like it's being held back. If I were to unplug the PCM plug, what would happen?

[lachlanw]

and pcm= what ?

do yu have a boost gauge to tell us what and when it drops ?

and why do you boost your car when its cold ? or were you talkin bout the weather

[Samuel Leonard]

and pcm= what ?

do yu have a boost gauge to tell us what and when it drops ?

and why do you boost your car when its cold ? or were you talkin bout the weather

i don't bost cold. i warm it up for a couple of minutes in the drive way, i gingerly drive it till the coolant temp goes up to the middle of the guage and then i boost it sometimes to about 3500 (no higher) until my oil temp gets over 70 degrees. and it's in the time between the coolant reaching the meddle of the temp guage (probably about 60 degrees or around there i'd say) and till the oil temp gets to around 75-80 degrees(i change to watching the oil temperature because the coolant temp guage doesn't move any higher even though coolant temp increases) that it feels awesome. once the oil temp has sat at about 80-85 for a bit it starts to get sluggish (around the time i hear the viscous fan start to work hard) and the viscous fan (driven off the engine) kicks in at around 75 degrees on my car. is this odd? (going from a consult cable to a laptop)

Edited March 16, 2011 by Samuel Leonard

[Samuel Leonard]

and pcm= what ?

do yu have a boost gauge to tell us what and when it drops ?

and why do you boost your car when its cold ? or were you talkin bout the weather

and pcm = pressure control module. it's like a boost controller but factory and with the lines blocked to it the boost (on my r32 gtr) stays around .5 bar and with them unblobked (aka removing the factory boost restriction) it rises to about .75 bar

when it drops (when running temp) it drops back to about .5 bar.

Edited March 16, 2011 by Samuel Leonard