2013 Ford Escape 1.6 ecoboost
Started getting codes Po340 po344 after replacing cylinder head. Verified timing 3 times already. Code come on as soon as vehicle is turned on. Has this happened to anyone? thank you in advance.
Scope the cmps and the ckp, this capture is from a 2013 Fusion 1.6.
Just to make sure, you are using the tool to align the crank pulley as well correct? 303-1550
Yes I used that tool as well. I double checked the timing and everything looks good.
Something must be off with the timing. Do you have a scope, if so attach a picture of the waveform. I assume you are using the timing tools for this engine?
Yes I’m using the correct timing tools to set the timing. I’m going to check the waveform today and send a picture.
Just a wild guess but is it possible that the sensors are plugged in back wards. If it sets the codes right away maybe why.
Here is a 2013 in good condition after fighting with the timing
Does it run ? P0344 is an intermittent signal code ..Sensor, reluctor ,wiring .
This is what I got from the scope
Eddy, the cmp/reluctor pulses should have 2 wider pulses and 2 narrow pulses.
Great job posting the waveforms. As Ray said you can see something is not right on what should be the 2nd narrow pulse. My next move would be to look at the reluctor for damage.
By “as soon as vehicle is turned on” do you mean as soon as the key is turned to the run position and the engine is off, or do you mean as soon as the engine starts? P0340: Camshaft Position Sensor A Circuit Bank 1 or Single Sensor P0344: Camshaft Position Sensor A Circuit Intermittent Bank 1 or Single Sensor Both codes are loss of signal, intermittent or shorted from camshaft sensor A You…
Are you leaving the crank pulley bolt loose when you pull the pin on the tensioner? The crank pulley must be allowed to spin when timing belt tensioner is released
Reference the great Bernie Thompson having a very similar problem: youtu.be/Sr8c3BHJwpA?t…
I want to thank everyone for their help. I didn’t get a chance to reply to everyone but I tried everything that was suggested. I verified the timing one more time and it was good. The last thing i did was switch the bank 1 and bank 2 Cmp connectors and got a code for bank 2. We replaced the intake camshaft and that solved the problem.