Parts needed to run ECU

[fixkick]

The air temp sensor was missing on early, 16v engines. (its only fine tuning device, unlike the 8v)
if missing , (on ecu that use it) it will throw a DTC error. running. code 23, it might force you EFI to Failsafe mode.
it is listed i the book as just that. here. using the old name "ATS" so is needed, on all cars, requiring it.
http://www.fixkick.com/ECU/LimpHome/failsafe.html

EGRT, its called,
since the CAT is missing then the EGR is dead anyway, (the EGR mode , uses cat back-pressure to run EGR flows)
so its a moot point, forget all that. and use the resistor fooling device.
Some ECU's, use the (what i call calif) egr2, system. it has a new thermoprobe (by 1995 all G16b have this probe.!)

here it is.
http://www.fixkick.com/sensors/EGR/92-95...oprobe.jpg

this sensor screws in to the side of the EGR main valve. (it's a thermistor , device)
and had a harness connector near by, to connect this cable up.
so on the newer ECU's , that demands this part, we put a 10,000 ohm resistor on the 2 ecu matching pins, (if not you get DTC code 53)
Some ECUs, will go to penalty mode with 53s (or 51) and run rich, (to avoid NOX pollution , the worst of the 3)

seen here B17 to B15
http://www.fixkick.com/ECU/92-95MPI-eng-...e-huge.png

as you can see B21 is IAT

how is that?

the only issue with a/T ECT is pin A22 (may need jump to A2) but mine didnt need it at all . this jump.