the origional is hopeless case,
what makes you sure 1st diode is bad, i bet it is just acid leaking from corner cap. at 2 pm.
so did the ECU 2, fail the noid test?
ecu 2, what name is on the corner cap, rubycon? i an see they are old with no cross stamps on top, why not replace them with great nichicon caps. and give them a future.
does the ecu flash 12s before cranking and after cranking for 5 seconds.
or do you get code 41 or 42?
is the 5vdc pin reading near 5vdc keyon? A23 or better at TPS. gray-red wire?
http://www.fixkick.com/INJECTORS/89/89-90schem1.jpg
the main PCB is conformal coated, and will turn white, at any signs of acid. first signs that is. and progresses to total death.
i bet the diode is good, its easy to test, with a DMM, in diode mode, it conducts one why but not the other, (ask)
why not do all ECU tests, may be its not the ECU at all?
why condemn it? at first stall>?
the noid test, proves (mostly) that the injector driver is good (after all tests above, falshing 12s, 5vdc test)
does fail noid?
the TPS ground wire open, willl cause the ecu to not inject. (by design)
as will code 41 and code 42 (by design , fire safety)
i have 8- 10 simple test on my dead ecu page
http://www.fixkick.com/ECU/ECU.html#Tests
SEE TEST 10, NEVER CONDEMN ECU IF:
CLEAN ACID WITH BACKING SODA AND WATER MIX, USING A Q-TIP
NEUTRALIZE THE ACID THIS WAY.
thanks for photos, the 1st one is a treasure of death, worst of worst.
what makes you sure 1st diode is bad, i bet it is just acid leaking from corner cap. at 2 pm.
so did the ECU 2, fail the noid test?
ecu 2, what name is on the corner cap, rubycon? i an see they are old with no cross stamps on top, why not replace them with great nichicon caps. and give them a future.
does the ecu flash 12s before cranking and after cranking for 5 seconds.
or do you get code 41 or 42?
is the 5vdc pin reading near 5vdc keyon? A23 or better at TPS. gray-red wire?
http://www.fixkick.com/INJECTORS/89/89-90schem1.jpg
the main PCB is conformal coated, and will turn white, at any signs of acid. first signs that is. and progresses to total death.
i bet the diode is good, its easy to test, with a DMM, in diode mode, it conducts one why but not the other, (ask)
why not do all ECU tests, may be its not the ECU at all?
why condemn it? at first stall>?
the noid test, proves (mostly) that the injector driver is good (after all tests above, falshing 12s, 5vdc test)
does fail noid?
the TPS ground wire open, willl cause the ecu to not inject. (by design)
as will code 41 and code 42 (by design , fire safety)
i have 8- 10 simple test on my dead ecu page
http://www.fixkick.com/ECU/ECU.html#Tests
SEE TEST 10, NEVER CONDEMN ECU IF:
CLEAN ACID WITH BACKING SODA AND WATER MIX, USING A Q-TIP
NEUTRALIZE THE ACID THIS WAY.
thanks for photos, the 1st one is a treasure of death, worst of worst.
http://www.fixkick.com