The crankshaft sensor touching the metal will make misfire . Have a look to sensor.
Get the ignition timing set up properly.
there is no timing to set it doesn't exist ,it's a C3I system. the timing is set by the pcm
While the timing may be set by the PCM, it has to get information on the crankshaft position from somewhere. If the info it is getting is wrong or a crankshaft sensor is faulty, then the ignition timing will be out.
crankshaft sensor tell where is the number 1.and give the rpm. the pcm base the timing according to the load on engine ,the tps. maf and so on. there is tree door behind the harmonic balancer it tell the matching pair of cylinder whose firing
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SOURCE: 99 buick Lesabre
hey thanks for bringing me up to speed. ive been working on many other problems but with your great explanation i remember.
we need to check the compression on that cyl. and compare it to the compression on 2 other cylinders your choice.
but before you do this get a can of carb cleaner . and with the car idling spray around the intake manifold in the area of #6 cyl. what we are looking for is a small vacuum leak that would also act like this. with the engine idling and spraying around the intake the engines idle sould not change and if it does when you spray you have an intake leaking.
let me know how it turns out.
later
paul
SOURCE: 99 4runner 5vz-fe 3.4 misfire
I know this post is old, but right on the engine theres a sticker that says use multi-ground plugs only. I read a similar problem like yours and it seemed to turn out that the spark was arcing to ground over the ceramic on the plug. So maybe it could have something to do with the single ground plugs.
SOURCE: Getting PO141 trouble code when scanning! Car '03 accord, 2.4 ltr
i spoke to a honda tech , and he confirmed code p0141 on the 4cylinder model is the second sensor.
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