new to forum here. have been searching but have found some new questions rather than answers!
I have an 86 kingcab, z24i, electro injection on air cleaner. I hear that this was supposed to be a single injector setup but mine has two injectors, which is supposed to be a vg30i setup? advance auto site had a manual and some other sites have the same statement.
Problem I have is that engine is acting up, will idle fine and little rough until get on gas some or more gas at higher speeds, can feel a point where it seems to bog or loose power. Awhile back blew a gasket, replaced head gasket and intake/exh gaskets and ok for good while.
Started again (slightly) few yrs later and found stud on intake loose under aircleaner, tightened and ok again. 6 mo later starts again, started right after downshift to make a turn and starts out of turn. replaced intake gasket due to saw a little coolant in sparkplug recess, second back (#3 I think?). still acting up, but also at same time noted one of plugs on exh side had come loose and was melted against exh header, so replace with older set I had replaced when did head gasket.
Going to take it to mechanic wed, too busy at work to spend a lot more time on it, and little exp w/tbi. Even mechanic said its an odd setup and would challenge some due to age, # out there. Looking for input or manuals on this engine/ tbi.
looks exactly like a z24 setup, only w/tbi. looks like one of pics in sticky post, but has 2 injectors. also has the box under driver seat where you use screw to do diag mode.
thanks for any input. Truck has run fine otherwise, exp for 30 yr old machine.