What does this mean?

[smokeum99ta]

Check engine came on. Got codes p0336, p0678 & p1000. I know p678 is a glow plug #8 ( side note which cylinder is it? Drivers/Pass side and front or back). Code p0336 says "P0336 CKP Crankshaft position sensor A circuit range/performance Crankshaft sensor circuit" what's that mean? I replaced my cmp sensor but light came back on. P1000 says "P1000 PCED OBD systems readiness test not complete OBD monitors/drive cycles incomplete " what's that mean also. That code seems to be on every time I check my moniter but won't make the light come on. Thanks for any help

[mazsecond]

The P1000 code is nothing to worry about. That code is thrown when you re-flash the PCM, it doesn't really mean anything and theirs no way to clear it for good besides returning to stock.

Driver's side 2-4-6-8
Passenger Side 1-3-5-7

Not sure about the other code. Maybe someone else can help you on that one...

Good Luck,
-Mike

[smokeum99ta]

Update;
So I finally got around to fixing my glow plug. Well so I thought after replacing #8 glow plug the code still popped up. So I replaced the harness and code still there. Any ideas???

[05f250inmn]

its the glow plug relay. Most of the time people get P0678 its a bad relay.

[smokeum99ta]

thanks. that fixed it