Your 98 3.2 v6 Isuzu trooper wont run proper idles ok but when you give it gas it misses and kangroos up the road?

Answer 1

This ones a hard one!!! You can start by checking the fuel pressure when you give it gas. The pressure should increase from around 39 to 41psi to about 43 or more psi when you give it gas. If it doesn't increase your fuel pressure regulator is faulty or your filter is clogged. or your throttle positioner sensor is faulty but either one of these faults should trigger the check engine light!! If your light isn't on and the above has been checked then I have heard of the computers ground wire breaking off of the engine or not having good contact. as was the case with mine. this problem does not trigger the check engine light. Pop your hood and inspect ALL the wires that attatch to the engine for proper grounding. Good luck!!