Low / rough idle once engine is hot 1994 FZJ80 (1 Viewer)

[mudgudgeon]

We never got an OBD2 FZJ80, everything here is OBD1. Jan 1st 2006 was the cutover to OBD2.

Haven't worked on a pre-95 80 for a little while, but do I recall correctly that the AU market 1FZ vehicles from 08/1992 to 01/1995 have oxygen sensors or do none of the 1FZ here have them?

Mine has just one O2 sensor

 

[CrabCake]

Mine has just one O2 sensor

Interesting...US spec 94 has 2 cats side by side and 2 O2's upstream (1 for each cat) only for OBD1, no downstream.

 

[AussieHJCruza]

My 11/96 has no oxygen sensor. Assume the change happened with the change from VAF to MAF but be interesting to know why.