1992 4runner ENGINE PROBLEMS

Ok sooo I can start the truck about 4-6 times and each time, the 4runner runs differently. Its like hitting the jackpot when I start it and it runs somewhat normal.
What could be the problem?
It also refuses to talk to the db1/db2 scanner that I have. Where as my 94 talks to it just fine. I'm thinking the '92 is having injector problems, but I'm not sure.
Is there a trick to get a read-out from the ecm without the scanner??

Its making me insane...
Thanks guys.




1992 4runner 3vz-e 3.0l v6
Eastern Emissions
Automatic
4 door 4x4

1994 4runner 3.0l v6
California Truck
4 door 4x4
 
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