car is a real USA 1996, got you.... on that. P0 codes. is that.
the old codes , ignore them, can be caused by dead battery, or parts disconnected with key on,,, and are false. (mostly) but very useful, sure!!!
useful if the pop back up.
new fails we can work.
the ect is bad or unplugged . (it has 2pins , not 1)
the test is super easy.
ENGINE J18
Car 96 SPORT, wide frame version. with simular TCM transmission. 4sp as G16s have. (same flash codes, at OD lamp)
The TCM is not melded in to the ECU yet, until 1997. its a separate box.
if i knew your first key on air temperature before starting engine we'd have hard data.
lets pretend , its 30F , the ect ohms unplugged is about 6000 ohms. (key off test)
if ohms is no fun then connected, key on it reads about 3.7v back probed, with needles.. (ECU says its near 5v (wrong) or wires cut here, or sensor is bad) (not a guess, a list)
when hot the ohms test (disconnected ) is 300 ohms, hot.
or running 0.65v all the time. back probed.
end ECT, easy huh?
TPS
the TPS on this car must be calibrated, its not hard to do at all , a cheap $10 voltmeter, and easy.
how is it done,
1: key on,
2: connect voltmeter
3: loosen tps screws, turn tps to 0.5v, done, lock down screws
my guess is some mech was playing here, and decided to mess up this simple calibration.
P0122 , this means the ECU saw the voltage go way below, 0.5v
causes are:
1: the wire is cut there. TP pin
2: 5vdc way too low on the 5vdc, power pin, (easy test)
3: TPS bad. (i bet not)
4: someone played with tps screws. and messed it all up.
ATF (its ok, but condenser this.)
run Dexron VI
brands, i dont care, but must be DEXRON VI (6) its the newest grade and older are now obsolete and poorer grades , all are.
the grade 6 runs at hotter temps with less degradation.! ( the best you can run is here)
don't let bottles tell you what to do, do not look for DEX3. ever.
find out what is correct.
answer is DEXRON
and 2nd answer is highest GRADE VI, (grade III is no longer certified by DEX and is officially a dead product)
there are sellers selling grade 3 for huge profits ($10+ bottle) for the people that think they need grade III.
sad to watch that.
the amount that comes out is totally random, think like its a sponge. (it is)
if you let it park over night more comes out. so.... forget that...
put back what came out. then adjust levels to operators guide steps, never guess or do it like engine oil,
or damage will happen.
PS:
do not unplugged, connectors on the car, with key turned to ON, or running.
if you must, then unplug battery neg LUG first.
TPS facts are here , the gray wire is the TP pin
http://www.fixkick.com/sensors/tests/TPS...ml#1.8_cal
the schematic is here.
gray-yellow is ground 0.0vdc
the gray-read must be near 5v key on or running (4.7-5.25v is spec)
thy gray is TP (aka. throttle angle and must be calibrated to 0.5vdc)
full ecu schematic is here, see the pins on TPS? clear as day.
http://www.fixkick.com/ECU/18L/18LiterECU1.pdf
OD flashing is a whole other ball of wax. (problems, p1600 means ecu cant send live data to the TCM box.) my guess you unplugged it and turned on key.
rules on cars, (modern)
do no hot wire, anything, (ok the starter solenoid is ok to do for testing)
nor ground things , not supposed to be ground.
nor hot swap anything, means with battery connected or with key on. or things can blow up.
for sure never hot swap the ECU. or TCM. or cruise module, etc.
never hot wire the fuel pump relay socket, or boom ,kiss off a $400 ECU. or more.
if you unplug TCM , and then key on, the ECU will set P1600, (harmless, no damage, but now TRANNY is a manual tranny missing 1 gear)
to erase all stored DTCs, in ECU and TCM , pull the dome fuse for 5min and put it back.
or use the scan tool like you did, but it wont erase TCM, this year,
TCM checks.
we dont have the book that shows where they hid the 1996, TCM (diagnostic, check pin)
nor where they moved the DLC for TCM.
to find it will take looking at wire colors of all connectors on car that have no connectors, naturally.
id look at all colors , at the 16pin DLC at top right of your knee, as a good starting place.
The G16 car the wire is BLUE-ORANGE
and goes to pin1, of G16, DLC for TCM (dedicated)
but on your 1996 J18 this wire goes to
, I DONT know !, but would love to find it and could hands on..
if you had a 1997 car
the ECu would have P07xx codes. for sure. tranny errors. TCM errors.
but it's not a 97.
i got more, always do
the j18
what not to do
do not play with the cam sensor (CMP) on rear of cam.
leave it alone,
if you must remove it,. match mark it first. mark case and its mount so you can put it back (exactly) like it was, factory timed.
if you lose this mark, you then get to find the timing freeze jumper , to re time, it. ( but takes some work)
it at the Left strut tower DLC connector. (drivers left side.engine bay)
as seen here
http://www.fixkick.com/IGN_timing/IGN-FREEZE.HTML
6pins, same as G16 uses.
and while there,
look for that TCM BLUE-ORANGE wire,,,,
there are 3 DLC on this car
one here.
and the one above the right drivers knee (OBD2, 16pin)
hope that gets you going./
cheers...
those 2nd group of DTC errors
are called catastrophic errors.
mean gross failures.
means cut wire or shorted wires.
0v found
or 5v found
both very illegal.
or like in base ball, a Foul ball.