Spec's in Sig.
1.9l twincam NA mota.
All stock saturn ( GM ) sensors/valve.
The v3 pcb is jumpered for IAC use according to the assembly guide.
On the Relayboard, is this correct?
S1 = 1A ("A" = "+" positive)
S2 = 1B ("B" = "-" negative)
S3 = 2A ( " " " " )
S4 = 2B ( " " " " )
more less do the A and B signify Pos, Neg....?
ok moving on
My IAC valve...
Infinate resistance between the Middle 2 pins...
The day I got my relayboard/wireharness/MS2blah blah blah....
I put everything(MS2/harness/RB/GMIAC"in a TB"/CLT/MAT) on my desk, connected everything... Hooked up my Lamda power supply... Bench tested my IAC... Always on And No Heat...
for the IAC valve I have the Saturn Wireing Scematix... (lookn now as i type, to copy correctly)
IAC A HI --------- Light blue wire / White trace
IAC A LOW ------- Light blue wire / Black trace
IAC B HI --------- Light green wire / White trace
IAC B LOW ------- Light green wire / Black trace
With that Blue would be coil 1 , green would be coil 2
A HI ---- S1
A LOW -- S2
B HI ---- S3
B LOW -- S4
I have contacted a friend that is going to come over and turn the key for me.
I will be using a spare throttle body and SAME model IACV "but different unit", to phically watch IACV movement.
While doing so I will note Step Time and test to see how small I can to with out missing steps. When I have proper "Visual" function of the valve.
Set the Start Step more accuratly...
Last edited by Lordprimate
on Sat Feb 11, 2006 11:23 pm, edited 9 times in total.