06-18-2022, 10:23 AM
Hello - Have a 1996 tracker, 16 valve MFI, 2WD, 5 speed.
I've been trying to figure out why its been idling rich (keep failing smog due to high HC), I've replaced so many things but I think Im getting closer to finding the culprit:
My symptom is that my idle bleed screw is almost turned in ALL THE WAY to get 800rpm HOT.
If i turn it in all the way, my DMM reads ~6 volts. It cant reach 7 volts even if i turn in the bleed screw all the way.
I've checked for vacuum leaks. None. I replaced most vacuum lines too.
The ISC is new and its not leaking.
IF I UNPLUG THE ISC, AND TURN THE IDLE AIR BLEED SCREW IN ALL THE WAY, THE MOTOR STILL RUNS (200-400RPM).
In the scenario above, the motor should die, correct?
I'm thinking my issue could be the IAX WAX PELLET thingy - maybe its not closing all the way?
How can I test if its that, what kind of clay should I pack it with? I cant find a replacement IAC or gasket anywhere....would my best bet be a junkyard?
I've been trying to figure out why its been idling rich (keep failing smog due to high HC), I've replaced so many things but I think Im getting closer to finding the culprit:
My symptom is that my idle bleed screw is almost turned in ALL THE WAY to get 800rpm HOT.
If i turn it in all the way, my DMM reads ~6 volts. It cant reach 7 volts even if i turn in the bleed screw all the way.
I've checked for vacuum leaks. None. I replaced most vacuum lines too.
The ISC is new and its not leaking.
IF I UNPLUG THE ISC, AND TURN THE IDLE AIR BLEED SCREW IN ALL THE WAY, THE MOTOR STILL RUNS (200-400RPM).
In the scenario above, the motor should die, correct?
I'm thinking my issue could be the IAX WAX PELLET thingy - maybe its not closing all the way?
How can I test if its that, what kind of clay should I pack it with? I cant find a replacement IAC or gasket anywhere....would my best bet be a junkyard?