Ho tow chack cams chaft sensor for yaris - 2010 Toyota Yaris

the EFI works just like that, if ECU sees no spark it cuts fuel fully./
to end crash and burn as seen on TV and by laws here USA
My 2009 1kr Toyota Yaris we check all fuses first (a test)
then we scan the PCM using a scan tool. eg: omg CKP sensor or CMP sensor is dead ,. if seen.
have a shop fix this or buy the tools and learn how.

1.5L I4 , engine.
how man miles
buy it used and dead??>???????????????????????
chain drive cams, so I guess they didn;t scream for help just before it died right (chain thrashing/)
this engine has 4 COP coils, are all 4 dead? the classic test?
or just 1, all 4 must spark , not JUST 1, see my drift?
if all are dead and fuses all good
the scan tool tells you why,
P03xx errors. 1 for cmp or 1 for ckp deathh
ckp crank sensor wires fell off or got heat by road hazards.
CMP is on cam end. not lose.

Cam shaft timing would be set by aligning the timing marks when replacing the timing belt, chain or gears (depending on which system your engine uses).

Codes??? I bet its the throttle position sensor or idle air control...try cleaning b4 replacing. Make sure you use cleaner specifically for them. Gd luck....

if it blew out your spark plug then you have a lot of engine pressure probably from blow by or a broken head gasket between pistons.

Error Code:P1340
Description: Camshaft Position Sensor B Circuit Malfunction
Solution:
- Delete codes
- Check the connector and wires attached to the cam shaft position sensor.
- Cam shaft position sensor defective. (Replace with good known one).
- Wiring harness.
- ECM.

disconnect the cam sensor and test again. if it comes up with low then cam sensor is faulty cam and crank work together. best to change them both at same time.

look at the coil on the plug that isn't firing. May be bad.

check that the cam sensor rotor is on the camshaft properly and is adjusted to the correct air gap
if the dealer just did the overhaul then take it back to them

Check ecm for number 1228253. If it has this one in it you will have a cutting off problem. Gm replaced these with #16198264 The cam sensor magnet on the cam gear will deteriorate and give problems. This will require removal of the timing cover.

Why not go and purchase the sensor to see what it looks like. Then you know what you look for. It is usually close to the bottom pulley, usless it the cam chaft positioner?????