Alright, my cel is still on from a long time ago. P1337 crankshaft position sensor faulty and random misfire on all 4 cylinders.

I've replaced
wires
plugs (gapped properly)
cap
rotor
ignition coil
set the valve lash twice

Now, when i check my timing the little white mark generally stays at 16bdc but every so often i see it jump about 1 inch advanced. I can smell my exhaust running rich.

Through research i've found most vehicles that are getting this problem are due to a shaft in the distributor being loose and vibrating cause it to jump.

I've bought a new crankshaft position sensor but have not installed it for now i think it may be the distributor?

Anyone have any ideas?

thanks.

 

If the CPS sensor is bad you should throw a CEL for that.

I believe it "Jumps" like that when the knock sensor detects knock.

I had a similar problem with misfires and a very rich scented exhaust. Turned out my exhaust cam was retarded by one tooth. Are you sure the timing belt is on exactly right?

If your intake cam is off, it will be almost impossible to set the ignition timing without backing the distributor out (all the way in either direction.)

 

^ hmm... while i'm doing the CSP sensor, i'll go ahead and check my timing marks. Thanks alot!


*edit* Just for the future researchers of the code. It turned out my CSP sensor was damage somehow, after replacing the sensor and re-timing it, my cel went away as well as the Gasy exhaust smell.

6 months it took me to fix this problem.