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B1 B2 i referenced are the two middle pins on the iacv along with the outer 4 S1 - S4 pins. What you said about only getting continuity through the battery does make more sense now. Assuming 50303 and 50304 ecu's are wired the same the only thing thats messed up was myself plugging in the...

To clarify- My isc or iacv s1-s4 are pinned correctly regarding my manual for a 50304 ecu. Connector pins B1 and B2 seem to have continuty through ecu connector E11 pin 22.... Which seems incorrect as this should be B+ per my manual, and B1/B2 should be pinned to ecu connector E12 pin 16...

Would anyone here have a pinout diagram for 89661-50303? Ive scoured the web for pinouts to no avail so far. After testing the pinouts on my harness and cross comparing the repair manual i have, I found that my iacv grounds are wired incorrectly per my manual. However, my repair manual is for...

Engine is timed correctly as well, yes

Hey all, ive been researching and struggling to get my UZ running in my gutted 84 celica for quite some time now. I had made a previous post when first buying the UZ asking about fuel rail differences and trying to find more information on what engine I have - all is well and I have this...

Hello all - question is the title; but here's some background for those who care - I bought a UZ from someone on marketplace who had planned on swapping it into their ae86. The UZ 'apparently' comes from a 96 ls400. Now the plan is to drop it into my 84 celica supra. The wiring was abysmal, so I...