Q: 2001 Isuzu Trooper 3.5L 2,4,6 cylinders are not firing. on 2001 Isuzu Trooper

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So I had my 3.5L Trooper engine rebuilt, timed and everything. Well when I got it back from the timing shop I noticed the 2,4,5 cylinders aren't firing properly and the engine runs rough and has no power. I replaced the spark plugs, coils and wires and it hasn't fixed anything. If I unplug the 1,3,5 plugs wires the engine bogs down like it is going to die but not with the 2,4,6 plug wires. Any thoughts?
(1) Answer
(1) Comments
Check firing order-check for ignition fire-check injector pulse-check compression-check with a mechanic.
Thanks, I come to determine its the injectors. And the Mechanic is useless unless I pay him tons of money again. Which is ridiculous since he should have fixed it the first time. Thanks for your reply though!
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