| Go back to previous topic | | Forum name | Performance/Engine | | Topic subject | where would i hook up an RPM activated switch to? | | Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=27962 |
27962, where would i hook up an RPM activated switch to?
Posted by tim97rs, Jul-19-02 09:47 AM
the tach wire at the ecu, or someplace else?
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27963, RE: where would i hook up an RPM activated switch to?
Posted by Michael_97RS, Jul-20-02 08:19 AM
Yes, the tach signal at the ECU: white wire A-73 on your '97.
Una salus victus.
"We are going to have peace even if we have to fight for it." - Dwight D. Eisenhower
Michael J. Kulaga
e-mail: Michael_97RS@2gntDSM.zzn.com aol IM: MJKulga
http://highlander.dsmpower.com/
All motor in the making.
Injen CAI, 55mm TB, P&P Intake Manifold, Hooker Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, Crane Fireball HI-6DI2, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730, Front KVR Cross-Drilled Rotors & Carbon Fiber Pads
To Be Installed: P&P Milled Head, Rear Disc Brakes, Rear KVR Cross Drilled Rotors & Carbon Fiber Kevlar Pads, SS Brake Lines
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27964, RE: where would i hook up an RPM activated switch to?
Posted by alain95i4, Jul-21-02 02:19 AM
I checked the white wire yesterday with the scope it is a very clean signal compared to the ones going to the coil pack
Go on the white wire, but remember it is half the frequency
Alain
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27965, RE: where would i hook up an RPM activated switch to?
Posted by tim97rs, Jul-21-02 01:49 PM
half the freq. meaning it will activate @ 2000rpm instead of the 4000rpm setting?
my SAFC is linked to that wire and it reads correctly. is there something in the AFC that compensates for that or something?
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27966, RE: where would i hook up an RPM activated switch to?
Posted by Michael_97RS, Jul-21-02 04:04 PM
The tach signal should be right, I thought the coil signal was half... But there couild be something in the setting on S-AFC that compensates... Don't even remember all the settings, and it's late.
Una salus victus.
"We are going to have peace even if we have to fight for it." - Dwight D. Eisenhower
Michael J. Kulaga
e-mail: Michael_97RS@2gntDSM.zzn.com aol IM: MJKulga
http://highlander.dsmpower.com/
All motor in the making.
Injen CAI, 55mm TB, P&P Intake Manifold, Hooker Header, GS-T Muffler, AFX UDP, S-AFC, 8.5mm Magnecor Wires, Crane Fireball HI-6DI2, SS Clutch Line, NRG Susp. Motor Mount Ins., FU/RU/RL STBs, TSW Blade 17x7.5, Bridgestone Potenza RE730, Front KVR Cross-Drilled Rotors & Carbon Fiber Pads
To Be Installed: P&P Milled Head, Rear Disc Brakes, Rear KVR Cross Drilled Rotors & Carbon Fiber Kevlar Pads, SS Brake Lines
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27967, RE: where would i hook up an RPM activated switch to?
Posted by alain95i4, Jul-21-02 11:31 PM
>The tach signal should be right, I thought the coil signal
>was half... But there couild be something in the setting on
>S-AFC that compensates... Don't even remember all the
>settings, and it's late.
I got 80 Hertz on the frequency counter at 2400 RPM and I expected 160 Hertz, on the white wire
Unless my formula was wrong ????
Alain
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27968, RE: where would i hook up an RPM activated switch to?
Posted by tim97rs, Jul-22-02 12:15 AM
forgive me but im lost with this frequincy thing. is there a diff. freq that translates into the RPM's at the ECU compared to any place else in the ignition circut? if so, why?
does that mean i CAN or CANNOT splice in an RPM activated switch on the white wire at the ECU and get the correct rpm readings in order to activate the switch?
thanks a lot guys....
tim
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