hi guys i have project in mind , i have 2004 GMC safari that i just bought , i need to put efans instead of clutch fan , i could use any variable control in the market but i thought i can connect my efans to the pcm , my pcm is 12587603 , same number came on 2004 corvette can anyone help me with OEM GM efan harness and what pin i,m looking for in my pcm ??
P1-SC1 505HP @ 13 psi,dual interceptor guages(AFR-B/V-FP-T/T),dewitts C5 efans(pcmforless harness,pcmforless tans cooler,ARH headers,alchol injection system,battery cable upgrade,cutout,90mm TB TUNED BY DASHTI
top of thread
P1-SC1 505HP @ 13 psi,dual interceptor guages(AFR-B/V-FP-T/T),dewitts C5 efans(pcmforless harness,pcmforless tans cooler,ARH headers,alchol injection system,battery cable upgrade,cutout,90mm TB TUNED BY DASHTI
Yes, it's easy.
Get 2 PCM pins from a used harness, insert them in blue connector pin 42 (fan 1/low speed), green connector pin 33 (fan 2/ high speed).
Then wire the setup as you want: low/high speed for both fans like Fbodies, or Fan 1 / Fan 2 like trucks.
Finally, enable the fans in the tune and adjust the on/off temps
9 sec Montecarlo SS
thank you very much , but i still need the GM harness part number
i found GM 15912597 , the guy said its for savana GMC , but when i search the internet it says headlights harness ???
P1-SC1 505HP @ 13 psi,dual interceptor guages(AFR-B/V-FP-T/T),dewitts C5 efans(pcmforless harness,pcmforless tans cooler,ARH headers,alchol injection system,battery cable upgrade,cutout,90mm TB TUNED BY DASHTI
this is the harness 15912597
can anyone tell me please where the pcm 2 wires ??
P1-SC1 505HP @ 13 psi,dual interceptor guages(AFR-B/V-FP-T/T),dewitts C5 efans(pcmforless harness,pcmforless tans cooler,ARH headers,alchol injection system,battery cable upgrade,cutout,90mm TB TUNED BY DASHTI
i would suspect it is the small connector to the lower right.
But you will have to wire into the pcm connector.
hi guys , everything is done
the harness pining and fans installed . i need help with tune , and looks i,m not getting low and high speed only hi , is this related to harness or the fan setting???\
here is th efile
the harness i used from pcmforless
P1-SC1 505HP @ 13 psi,dual interceptor guages(AFR-B/V-FP-T/T),dewitts C5 efans(pcmforless harness,pcmforless tans cooler,ARH headers,alchol injection system,battery cable upgrade,cutout,90mm TB TUNED BY DASHTI
goto
System
A/c and try setting AC Recirc to Fan #2
is this to fix hi and low speed , coz the fans works with AC good
P1-SC1 505HP @ 13 psi,dual interceptor guages(AFR-B/V-FP-T/T),dewitts C5 efans(pcmforless harness,pcmforless tans cooler,ARH headers,alchol injection system,battery cable upgrade,cutout,90mm TB TUNED BY DASHTI
Yes, IIRC the Pcm will only use one speed when set to AC Recirc as it thinks you have Auto AC
Reply With Quote