my 91 ka24de all stock the other day while i was driving started misfiring while going home.
symptoms are:
-really rough idle
-great loss of power
-sounds like a sti
-little white smoke out the tail pipe
-little back fire
-kinda smelly exhaust
-no check engine light on
+i checked and adjusted timing back to stock
+getting all spark (but noticed my spark plugs black)
+no arcing in spark plug wires (good)
+dizzy good working order
+coil good working order
+next i pulled plugs out with car on and cyl#4 had no change
+next i checked the injector wire plugs and all were plugged in
+so i pulled each off with car on and again no change in cyl#4
+next i checked the resistants of each plug and plugs 1-3 all resistant except #4
so all testing is pointing to cyl#4 injector...
now im asking is it just the wire bad (power from ecu or ground)
or
bad injector mechanically not in working order..
if its a wiring problem can some1 direct me to a wiring diagram for the wiring of the injector
or
another way to patch this up for now (wire bypass or splicing to another wire)
yes i have searched here and google and other 240sx sites
any help would b nice
-thanx guys
symptoms are:
-really rough idle
-great loss of power
-sounds like a sti
-little white smoke out the tail pipe
-little back fire
-kinda smelly exhaust
-no check engine light on
+i checked and adjusted timing back to stock
+getting all spark (but noticed my spark plugs black)
+no arcing in spark plug wires (good)
+dizzy good working order
+coil good working order
+next i pulled plugs out with car on and cyl#4 had no change
+next i checked the injector wire plugs and all were plugged in
+so i pulled each off with car on and again no change in cyl#4
+next i checked the resistants of each plug and plugs 1-3 all resistant except #4
so all testing is pointing to cyl#4 injector...
now im asking is it just the wire bad (power from ecu or ground)
or
bad injector mechanically not in working order..
if its a wiring problem can some1 direct me to a wiring diagram for the wiring of the injector
or
another way to patch this up for now (wire bypass or splicing to another wire)
yes i have searched here and google and other 240sx sites
any help would b nice
-thanx guys
