HELP!!!

[sebastianroher]

My '09 Yaris won't start! I recently changed the Camshaft Position Sensor because the old one was spewing oil out of it. I went to start the car today and she just cranked over but never started. I pulled all the plugs and she is getting fuel to every cylinder. I checked the new camshaft position sensor and saw about a 1/4 of a tsp of oil in the new sensor as well. I cleaned it with a q-tip and reconnected it but she still won't fire!!! I am going to compression test it today, but I don't know why I'm not getting spark. If anyone knows what I should do/try, it would greatly be appreciated.

[sebastianroher]

Update!!!
Cylinder 1 Compression: 195psi
Cylinder 2 Compression: 155psi
Cylinder 3 Compression: 165psi
Cylinder 4 Compression: 190psi

[CTScott]

It looks like you have a leaky head gasket or warped head on the center cylinders. Considering that it was starting before you replaced the crank sensor, I would check that. I would also check to make sure that each plug is getting spark since you are getting fuel.

[sebastianroher]

Scott, I replaced the camshaft sensor, should I check and replace the crankshaft position sensor? I shot you a few messages as well.

[CTScott]

I would put the original cam sensor back on to see if it starts.

[sebastianroher]

You think the new one is defective

[sebastianroher]

Scott, I tried that and I get P351-P354 ignition circuit malfunction

[sebastianroher]

I pulled the crankshaft position sensor. I'm going to test it at work tomorrow. I don't know what else it could be, I studied the diagram and the crank sensor is in line with the ignition system and when it fails the car won't start or will be hard to start.

[CTScott]

Originally Posted by sebastianroher

I pulled the crankshaft position sensor. I'm going to test it at work tomorrow. I don't know what else it could be, I studied the diagram and the crank sensor is in line with the ignition system and when it fails the car won't start or will be hard to start.

0351-0354 can be caused by the Oil control valve not working due to being plugged up. That is the round device mounted next the alternator. It also has a fine mesh filter mounted into the block below it.

[sebastianroher]

How do I remove it? Do I replace it or clean it and re-install it? What about the mesh filter?

[CTScott]

The valve is just mounted with one 10mm bolt. You can pull and clean it. The filter as well you can pull and clean.

[sebastianroher]

Alllright. I'll work on that tomorrow. What do you think about the crankshaft sensor? I also don't understand how that valve throws off the ignition?

[CTScott]

It's worth checking out the sensor and easy enough to do so if you have access to an oscilloscope.

[sebastianroher]

What's an oscilloscope? I was gonna check the resistance with a multimeter

[sebastianroher]

The manual you sent me says to check the resistance.

[sebastianroher]

Scott, I checked the oil valve and it was surprisingly clean. I wiped it down and re-installed it. I'm going to check the crank and cam sensor tonight when I get to work. Where is that mesh filter you were talking about? I couldn't seem to locate it. There was this bolt I'm assuming, it was bolted on below the oil valve. It had an allan key head, and I stripped it out :( do you know what that is?

[CTScott]

Originally Posted by sebastianroher

Scott, I checked the oil valve and it was surprisingly clean. I wiped it down and re-installed it. I'm going to check the crank and cam sensor tonight when I get to work. Where is that mesh filter you were talking about? I couldn't seem to locate it. There was this bolt I'm assuming, it was bolted on below the oil valve. It had an allan key head, and I stripped it out :( do you know what that is?

That bolt into the block directly below the valve is the cover for the filter housing. The filter is about an inch long and 1/4" in diameter.

[sebastianroher]

Any idea on how to get it out since I rounded it? Also, do they sell them?