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Location:
Gold Coast
Registered:
June 2004

SAFC II + AVCR + FCD HELP!	Thu, 03 February 2005 12:24

So i have preaviously installed an AVCR myself on my tt auto soarer with great results. I then installed a HKS fuel cut deffender (FCD) to raise the fuel cut slightly. The FCD spliced into the pressure signal (I'm guessing it is the map sensor signal). By spliced i mean the signal wire was cut, signal from engine went into 1 side of the FCD and then fed into the ECU. I then bought an SAFC II and read the installation instructions. The SAFC II also cuts into the pressure singal the FCD does. My question is can both these items (SAFC II + FCD ) be used together, because as far as i know they both modify the singal the ecu recieves, would one cancel the other out? or do they modify the signal in different ways? If this is so can anyone tell me how each modifies the signal? Also, the readouts from the avcr and safc are slighty different where they have been spliced into the same signal like RPM and throttle readouts, is there a reason for this? And finaly can these to piggy back units be made "aware" of each other. I can recall ready that the safc can "trace" avcr functions. [Updated on: Fri, 04 February 2005 16:15] [Report message to a moderator]

Fr3aK
Regular

Location:
Wollongong
Registered:
January 2005

Re: SAFC II pressure sensor question	Fri, 04 February 2005 07:22

Is the pressure sensor the wire you had to cut? If not, which one did you have to cut? If it's only spliced, you can 'tap' shit into it all day long. There should be diagrams in the manual how to 'daisy chain' all of the A'PEXi products. [Report message to a moderator]

Location:
Gold Coast
Registered:
June 2004

Re: SAFC II pressure sensor question	Fri, 04 February 2005 10:36

Yep, wire has to be cut , wire coming from engine feeds into the safc , then another wire off the safc loom re-attaches to complete the conection. [Report message to a moderator]

oldcorollas
Forums Junkie

Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003

Re: SAFC II pressure sensor question	Fri, 04 February 2005 10:43

do both devices have high enough impedance to allow the signal to be tapped without altering it too much? why not run a new pressure sensor just for the SAFC? [Report message to a moderator]

Fr3aK
Regular

Location:
Wollongong
Registered:
January 2005

Re: SAFC II pressure sensor question	Fri, 04 February 2005 10:51

I say put the FCD splice BEFORE the SAFC. That way, it'll still work with your existing tune, while retaining its integrity. But always, if in doubt, call a performance shop which installs these devices. [Report message to a moderator]

Location:
Gold Coast
Registered:
June 2004

Re: SAFC II pressure sensor question	Fri, 04 February 2005 16:13

I re-wrote the original post to include a few more questions and details. Thanks [Report message to a moderator]

Chris Davey
Forums Junkie

Location:
sunny coast, qld
Registered:
October 2002

Re: SAFC II + AVCR + FCD HELP!	Sat, 05 February 2005 01:11

I think the way Freak said to do it is the correct way. My mate was about to install his SAFC in his jzz30 which has an Apexi RSM which also uses the signal from the pressure wire and he explained it to me how Freak said. [Report message to a moderator]

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