a/f ratio gauge help?

Rick 91GT · 09-10-2001, 10:34 AM

I also installed a toggle so I can read the LH and RH independently, works good. I also choose to hook the wores up at the EEC instead of under the car at the O2's.

Installation instructions for a left and right DPST switch. (Radio Shack)
Red = 12v Ign. (5 amp inline fuse)
Blk = Engine grd.
Violet = Center pole of switch to the
Left switch pole = right hand oxygen sensor / number 65 (gray/blue) at EEC
Right switch pole = left hand oxygen sensor / number 66 (red/blue) at EEC

Soldier connections of jump wire at switch pole and shaved wire at EEC.

The violet wire is coming out of the back of the A/F gauge and is connected
only to the center pole of the DPST switch.
Don't cut the OEM wires to the EEC, just shave back the plastic insulation
that covers the wire and twist the wire around the exposed bare OEM wire
(65&66). You should use a pencil type soldiering iron a soldier all the
connections.

------------------
Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension, SPEC stage III clutch, Lakewood SFI bell, S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon!
<B>12.16 @ 113.5, 1.78 60ft..no traction in the 90 degree

[This message has been edited by Rick 91GT (edited 09-10-2001).]

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09-10-2001, 10:34 AM	#4
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	I also installed a toggle so I can read the LH and RH independently, works good. I also choose to hook the wores up at the EEC instead of under the car at the O2's. Installation instructions for a left and right DPST switch. (Radio Shack) Red = 12v Ign. (5 amp inline fuse) Blk = Engine grd. Violet = Center pole of switch to the Left switch pole = right hand oxygen sensor / number 65 (gray/blue) at EEC Right switch pole = left hand oxygen sensor / number 66 (red/blue) at EEC Soldier connections of jump wire at switch pole and shaved wire at EEC. The violet wire is coming out of the back of the A/F gauge and is connected only to the center pole of the DPST switch. Don't cut the OEM wires to the EEC, just shave back the plastic insulation that covers the wire and twist the wire around the exposed bare OEM wire (65&66). You should use a pencil type soldiering iron a soldier all the connections. ------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension, SPEC stage III clutch, Lakewood SFI bell, S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! <B>12.16 @ 113.5, 1.78 60ft..no traction in the 90 degree [This message has been edited by Rick 91GT (edited 09-10-2001).]