suzuki intake and TB swap from 91+ to 89-90 car

[fixkick]

your distibutor in the 89/90 will never work on any 91up ECU. 
no change. 
the 89/90 ECU is fuel injection only ECU it never makes or times spark ever.
the 89/90 has vacuum advance, mech centrifugal advance, and VR pickup timer with its own ignitor.  nothing at all 91+
even the cam on the 91 gear end is different I am told. so that too one more big problem JUMPING GEN 1 EFI to GEN2 EFI.

the first place to look  for coolant not hitting the ground is oil pan (OIL turns to milk chocolate drink fast)
then next is spun rod bearing , bad old this bad is toxic to all those ,a mains,cam.

cracked where in the below TB Plenum chamber or to earth. outside.?
cracked inside is only one cause ever, that is running pure water for coolant,  doomed it is ,even crack the block easy.

that manifold crack if you  idle any engine parked until  180f is hit  30minutes, the green fluild lands on the ground , under 14psi pressures
no better test exist for step one,  ever.
most these old engines,  G16,  30 years old now.  the IAC thermal idle valve is bad. just like thermostats. and for same reason old wax pellet inside.
next is bad FPR

for idle controls to work after calibrating  it. 800 hot.
is this.
82C coolant or more, a normal hot engine
1: Dash pot not stuck extended. (eyeball glance see the DP tip has  gap, proving DP is not dead. (dead it extends and races like mad)
2: no vacuum leaks at all but one, ISC  and TV screw to calibrate  it to 50% duty cycle, if any vacuum leak happens now the engine must race fast, with full power on tap.
3: the IAC must be closed hot, 100% closes or idle will fail.
that is how the 8v works, if the ISC can not correct the leak by ECU closing the valve ISC fails closed and engine screams out of control.

just 3 causes hot. (cold is whole other story)
once you see freeze damage, expect more.... can be small and ground , even block bad. OIL pan full of milk?
if not oil in pan and only intake plenum cracked that burns the stuff. and tail pipe end steams all day long. just like bad head  gaskets and warpped heads do. same.
 

key photos
89/95 actual


Plug or pinch all vacuum lines to find leaks, and things on the end of hose can leak too. (do smoke tests)
here is my horsed up  8v induction system all ways to leak from sunday, no?  even the brake booster leaking and more., DP stuck too (extended)





one test hard to do on 90 but easy on 91
is defeat the ISC, (pinch its air hose 91) or on 90 try to remove its pin in the ISC connector to make it dead. and RPM fails from 800 to 400 Hot on good engine or stalls.
if not and still races, there is one hell of vacuum leak here.
Close the TV screw. at TV stop screw turned CCW, if races huge leak. of air.
more the intake is A/T and the last guy put A/T MAN, there and the A/t modulator nipple leaks. dang. (poor job of blocking A;T nipple for M/T car.
pcv hose leaks, egr gasket missing, common. dash pot diapram cracked or same on FPR and leaks fuel at FPR vac nipple.
VSV stuck open or hose to it cracked.
freeze damaged ISC, just saw one and cracked inside and leaks air or coolant.