safc1 installation

cre · 02-05-2010, 11:29 PM

The wire location in the diagram I said to use are correct. Yes, the PDF you first posted is incomplete as it is missing the Operation portion of the instructions (page 33 forward).

In case you're unaware the 7M-GTE uses a KVAFM (Karman Vortex AFM) and the 7M-GE uses a VAFM (Vane AFM); So, if you end up using different instructions make sure you use the correct instructions (KVAFM).

cre · 02-06-2010, 12:47 AM

Quote:

Originally Posted by Green7mgte

so whats rpm signal 1 and signal 2?

I suspect IGt and IGf (trigger and fall off signals). IGt is used for determining RPM, I can't imagine why you'd need a signal from IGf.

cre · 02-06-2010, 01:04 AM

There are two different ways of communicating a signal (used by Toyota anyway), a frequency based signal (used on the 7M-GTE) or a scaled voltage signal (used in the 7M-GE). The pink is frequency and yellow is a voltage output.

Here's the manual from Apex'i: http://www.apexi-usa.com/content/pdf6135.pdf You want the diagram on page 44.

Green7mgte · 02-06-2010, 01:10 AM

very good so now I have my wires labeled. what about the points on the ecu itself. using the first link t5-b there are points for rpm signal 1 and 2. but i have only one rmp wire. and the karman diagram on one you provided don't specify 2 rpm signal wires. or a splice / cut. like the air in/out any thoughts?

it says regular connection rmp 1
plural connection rmp2. what the heck does that mean?

cre · 02-06-2010, 01:13 AM

Already covered that... you just need a signal from IGt. Look it up in the TSRM (EFI section).

cre · 02-06-2010, 01:59 AM

Do you have a wideband and gauge installed? If not don't make ANY changes until you get one installed or can have a shop tune it.

IGf is only really needed with ignition control systems.

cre · 02-06-2010, 02:45 AM

Quote:

Originally Posted by Green7mgte

the safc allows you to monitor to an extent and adjust the value.

It may allow you to see what airflow signal the ECU is getting from the meter, but it doesn't tell you at all how much fuel the ECU is actually delivering or how your changes are affecting it. You could always monitor the Vf feedback, but it's pointless in any setup that's remotely close to stock as it only provides feedback for closed loop operations and under certain rare conditions at WOT.

Portable wideband is the way to go as it allows on-the-go tuning. Get it close and dyno for for fine tuning if needed thereafter.

02-05-2010, 11:29 PM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The wire location in the diagram I said to use are correct. Yes, the PDF you first posted is incomplete as it is missing the Operation portion of the instructions (page 33 forward). In case you're unaware the 7M-GTE uses a KVAFM (Karman Vortex AFM) and the 7M-GE uses a VAFM (Vane AFM); So, if you end up using different instructions make sure you use the correct instructions (KVAFM). __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar ---> Last edited by cre; 02-05-2010 at 11:33 PM.

02-06-2010, 01:04 AM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	There are two different ways of communicating a signal (used by Toyota anyway), a frequency based signal (used on the 7M-GTE) or a scaled voltage signal (used in the 7M-GE). The pink is frequency and yellow is a voltage output. Here's the manual from Apex'i: http://www.apexi-usa.com/content/pdf6135.pdf You want the diagram on page 44. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

02-06-2010, 01:10 AM	#4
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	very good so now I have my wires labeled. what about the points on the ecu itself. using the first link t5-b there are points for rpm signal 1 and 2. but i have only one rmp wire. and the karman diagram on one you provided don't specify 2 rpm signal wires. or a splice / cut. like the air in/out any thoughts? it says regular connection rmp 1 plural connection rmp2. what the heck does that mean? __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines :

02-06-2010, 01:13 AM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Already covered that... you just need a signal from IGt. Look it up in the TSRM (EFI section). __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

02-06-2010, 01:59 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Do you have a wideband and gauge installed? If not don't make ANY changes until you get one installed or can have a shop tune it. IGf is only really needed with ignition control systems. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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