high i have a 98 d with a 5.2 getting multiple missfires on 158 and cam/crank sensor code also lots of oil consumtion havent noticed any smoke or leaks well a little on start up for like the first 2 sec and not alot either but im not behind it goin down the road new plugs havent changed the wires yet everything was fine the other day then bam ligh comes on so i was wonderin wires or cam sensor or is it the crank and what of the oil use belly pan maybe>also has been backfiring trough the intake still has power when its not missing

 

ok well lets start easy

for the misfires you already replaced the plugs, i hope you used the cheapo champion COPPER CORE plugs, gapped to .040, you need to put new wires, cap and rotor on there, brass contacts in the cap and rotor, and 8mm or better wires, this will most likely take care of your misfire problem

the crank/cam sensor should be replaced to correct the problem with that code (i believe it is located under the distributor and is also known as a pick up sensor)

for using oil there is a simple check for plenum gasket, take the air hat off and open the butterfly valve, shine a light down there and see if it looks oily, if there is oil pooled down there that is your oil consumption problem, replace with a hughes brand plenum plate (it will outlast your engine if you do it right, otherwise you will be replacing it again in the future)

crankshaft sensor mopar part # 56027870

 

There’s a lot going on there. Aside from still having power sometimes, it almost sounds like some of what happens when a loose/ stretched out timing chain skips or breaks a couple teeth. I’d do a compression check. As far as the associated oil consumption goes; if the valve timing is so far off (probably wouldn’t run at all) that the intake and exhaust are both closed when the piston is on a downward stroke, creating a vacuum, it can suck oil up past the rings. I am more familiar with the mechanical side of things so as far as knowing the exact symptoms the sensors can throw out is -?

 

try changing the crank position sensor (CKP). It tells the PCM when and which cylinder is at/near (depending on timing advance) to TDC on the compression stoke, so that it can fire. If the sensor is bad it could be firing at the wrong time causing the backfiring and misfires. Its not too difficult to replace. there is a notch in near the top of the bell housing where the sensor goes in to read the holes in the flexplate (its a magnetic pickup sensor). There are two bolts holding it to the block.

 

where do i get 8mm wires all the part store has is 7
the distributor cap on it now is the silver not copper and very corroded the button broke when i tried to remove it so im changin them first if no change then next week ill change the sensor

 

any chain auto store should have 8mm wires, if they dont have them in stock they should at least be able to get them, if not then try this http://www.msdignition.com/product.aspx?id=6149

or you could check rockauto or amazon, however that shouldnt be necessary (also this is not a place to cheap out on)

 

ok couldnt find 8mm wires for a resonable price so i went with stock 7 andnew cap and button and she is purring again havenbt driven her far but will let u know how it goes reset the ecm so ill keep an eye on the cel thanks

 

update as of now everything is perfect now no codes lights etc other than abs and brake light and i think it is the front passenger wheel sensor its not ohming at all the others are but it is like 138 bucks the others are 30 wtf is that all about why so much for the passenger side?

 

and why was the codes for tps and cam/crank being thrown when there is nothin wrong with em i guess the bad miss fres