Toyota EFI checker, SST No. 09991 - 00100, tests the functionality of the EFI computer plus
Sorry for the delay in getting back to you. I have a 1981 MA47. I managed to put together a few factory references including a complete wiring diagram, the 5M-E engine manual (carbureted version, what good is that?), the Supplement for EFI system (for the 5M-E). I also have the 1981 factory repair manual for Celica for everything else behind the firewall except the rear brakes. Didn't think too much of the Haynes 79-81 repair manual, especially since they failed to mention that the rear caliper pistons had to be turned not compressed to put them back inside the caliper. Small but important omission, especially when working on 40 year old calipers that may or may not be seized.Cliff what yr MK1? I have a basic wiring diagram for a '79 I can take a look to see if theres a fuse or circuit breaker in the system that may be an issue?
I also have a '80 Celica TSRM in the garage I can scan through as well??
I got all excited for a minute. Was ready to visit the family in NY. Unfortunately, I'm afraid it it won't work on mine. Sounds like a great price. I'm not sure what happened after 1982. Did the Toyota make the EFI digital or did that come later? When did OBD1 start? Thanks all the same. Perhaps I should buy a later Supra and then buy your checker.