2002 Isuzu Trooper Q&A

2002 Isuzu Trooper Question: Is there a proper way to seat boots to plug / coil pack? Other possible problems?

stalls,rough idle, spark plugs wet, engine light (multple cylinder misfire), idle speed variation. Replaced air filter, pcv cleaned, plugs, wire boots,oxygen sensors (upstream-due to lean condition,low volts), & fuel filter -
Answer 1
try a test computer -
Answer 2
I had similar problems and had to replace the intake manifold gasket. The problems have stopped since. Hope this information helps. -