knock sensor rewire help!!

turbosupraIII · 02-24-2010, 10:29 PM

do I need to rewire both of the KS or just one? Also if it is both do I have to run 2 wires to the ecu meaning make 2 rewires seperatley on 2 on 1 wire and run 1 wire back to the ecu.

mirage83 · 02-24-2010, 11:41 PM

As long as you're doing one you might as well do both. And I wouldn't tie them together, but that's just me.

turbosupraIII · 02-24-2010, 11:58 PM

aight cool but i can put the grounds together though?

mirage83 · 02-25-2010, 12:37 AM

Think so, but make sure you've got a good ground for it. You using coax?

cre · 02-25-2010, 06:50 AM

Rewire both.

Yes, you may run the grounds from each to the same place.

cre · 02-25-2010, 07:55 AM

This is what you need to do: http://www.supras.com/06/techcenter/display.php?QID=69

A separate coax wire for each sensor. The shielding may be grounded at the same location; Although, I would ground the shielding by the sensors to the nearest intake manifold stud.

turbosupraIII · 02-26-2010, 02:06 PM

what about the ecu i tap into the wires i understand that but i also have to ground again by the ecu like the same thing by the KS?

cre · 02-26-2010, 04:06 PM

Yes, ground both ends.

turbosupraIII · 02-26-2010, 06:43 PM

ok i did the rewire and the light is off.... i drove the car and its still doing the same thing wont let me go past 2500 rpm if i floor it, but if i baby it, it lets me go?? any idea what this can be????

turbosupraIII · 02-26-2010, 06:44 PM

also the cel did not come on

02-24-2010, 10:29 PM	#1
turbosupraIII Stock Join Date: Feb 2010 Location: schaumburg, IL Posts: 16	knock sensor rewire help!! do I need to rewire both of the KS or just one? Also if it is both do I have to run 2 wires to the ecu meaning make 2 rewires seperatley on 2 on 1 wire and run 1 wire back to the ecu.

02-25-2010, 06:50 AM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Rewire both. Yes, you may run the grounds from each to the same place. __________________ 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 --->

02-25-2010, 07:55 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	This is what you need to do: http://www.supras.com/06/techcenter/display.php?QID=69 A separate coax wire for each sensor. The shielding may be grounded at the same location; Although, I would ground the shielding by the sensors to the nearest intake manifold stud. __________________ 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 --->

02-26-2010, 04:06 PM	#8
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Yes, ground both ends. __________________ 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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02-24-2010, 11:41 PM	#2
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	As long as you're doing one you might as well do both. And I wouldn't tie them together, but that's just me.

02-24-2010, 11:58 PM	#3
turbosupraIII Stock Join Date: Feb 2010 Location: schaumburg, IL Posts: 16	aight cool but i can put the grounds together though?

02-25-2010, 12:37 AM	#4
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	Think so, but make sure you've got a good ground for it. You using coax?

02-26-2010, 02:06 PM	#7
turbosupraIII Stock Join Date: Feb 2010 Location: schaumburg, IL Posts: 16	what about the ecu i tap into the wires i understand that but i also have to ground again by the ecu like the same thing by the KS?

02-26-2010, 06:43 PM	#9
turbosupraIII Stock Join Date: Feb 2010 Location: schaumburg, IL Posts: 16	ok i did the rewire and the light is off.... i drove the car and its still doing the same thing wont let me go past 2500 rpm if i floor it, but if i baby it, it lets me go?? any idea what this can be????

02-26-2010, 06:44 PM	#10
turbosupraIII Stock Join Date: Feb 2010 Location: schaumburg, IL Posts: 16	also the cel did not come on