SOURCE: ignition on a 1993 Toyota
Stick a 12 volt test lite in the coil negative side, it should flash while the engine crank's, it will be dim, more like a pulsing glow, if this is not present the Crankshaft position sensor may be defective or the wiring to it. Make sure to check around the engine for any damaged wiring, places where the eng moves the most or the harness runs over something.
SOURCE: 2000 toyota 4runner pulling a random misfire in
try a new crankshaft sensor not hard to change 2 bolts and a wire
SOURCE: Rav 4 2004 stalls, sputters won't run changed
Change your plug wires. If you want to, switch wires with another cylinder. If the misfire moves to the new cylinder, you found your bad wire.
SOURCE: 91 4runner not running on 1,3,
Seems like you replaced everything on the ignition but the cap. Sounds like a good place to look to me.
Look for burn marks around contacts.
SOURCE: obd error code p1315 on
P1315 is a misfire in bank 4. P1315 Igniter Circuit Fault (Bank #4) . If that is the case you will need to replace the #4 coil, which is the one closest to the drivers side. I also would advise using original factory coil. At times the resistance of aftermaket coils will be a little diffrent from the other ones and cause problems.
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Replace the ignition coil in number 4 cylinder.----------This should help.Thanks.Helpmech.
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