(12-19-2019, 01:17 AM)eggsalads Wrote: Hello All, Have a 94 geo tracker. misfiring pretty bad and the coolant temp gauge on the dash does not work. Check Engine Light ON. I can't get the light to flash to check the code. I have tried using different wires and pin combos (I started bridging 2 + 3 this is WRONG) is there something I am missing? yes lots.
the DLC connector Diag, logic connector next to the car battery, is 4 pin or 6, which is yours?
sure what , engine is it?, 8 or 16valves
there are 2 cars, one with NAG light (CEL) one with out, NAG is the smog timer mode. the the other card, does not have that.
The hood sticker is first, open hood, look up and under, see that huge Suzuki sticker there, ? sure do you do, the on the last lines if the words California are the you have no NAG switch.
The Federal USA car only has this NAG switch
the location of said switch varies by engine, unstated and year. see unified photo in link below.
https://fixkick.com/CEL/NAG-Lamp.html
what I do is remove the nag switch completely, ending that pain, it was for cars back then with both leaded and unleaded fuel those days are gone now and the switch timer is Useless. today.
the diag DLC jumper is here. (4pin) B to C
(6pin) 2 to 4 jump.
https://fixkick.com/CEL/DLC/DiagJump.html
then with the NAG defeated (fed cars)
you then get flash codes called DTC. trouble codes.
seen here
https://fixkick.com/CEL/CEL.html#OBD1codes
The federal car if the NAG is active the DTC flash code are now dead. (silly no?) only for the silly reason the CEL lamp is shared.
flash codes DTC jumped at DTC works key on, running or even driving car. (nag turned off )
fed nag switch removed. mileage CAT timer FED. the fun parts is suzuki moved it 3 times. just to keep Federal owners, busy.(sarc off)
these cars, 89-95 with the words Calif. HAVE NO NAG switch at all, only the federal car.
http://www.fixkick.com