where is the fuse for my 4x4 on my 1986 2.8 fuel injected s-10
It should have a fuel injector fuse, possibly labeled as ECM or ECMI if you are not getting any fuel and have checked for power at the injector it sounds like you could have a bed/no ground signal from the ECM to the injector (blue wire). Ultimatly the ignition module send a reference to the ECM. Your module may be bad. Take it out and to an auto parts store to have it tested.
Search Chevrolet S-10 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet S-10 Experts