2002 Yaris 1.0 VVT - Won't start!

[core2lee]

Hi all;

First I will start with a bit of background info;

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I recently purchased an '02 Yaris 1.0VVT with high mileage (150,000 Miles). The car needed a new cam chain as it was very slack, and this could be heard when the engine was running.

In the UK it was much cheaper, and much easier to simply swap out the engine as opposed to the chain.

Now, just before swapping the engine the car would not start, had a spark, good fuel pressure but would simply turn over and not try to actually run.

So.. assuming the chain had slipped as the symptoms where the same as an engine with was not synchronized correctly, I found a working engine with much lower mileage. I did see this engine running in the crashed donor car.
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So.. out with the old, in with the new.

With the new engine in the car, the symptoms are the EXACT same. The car will turn over (crank), all 4 plugs have a strong spark, pleanty of fuel is getting into the engine, but the car does nothing. If I give it some gas, you can hear some occasional popping coming from the intake.

I have 2x crank position sensors (one of which was 100% working when the engine was running in the old vehicle).


Does anyone have any other suggestions as to what I can try next as I am really running out of ideas??

PS:
- The engines where the same codes (both Japan made I believe, definitely the same so same electronics/loom)
- Although I do not have another ECU to test, the ecu can through up error codes fine when sensors are unplugged (such as MAF, Cam position, Crank position sensors) but otherwise there are NO ERROR CODES.


Thanks in advance.