I think you are overlooking something and it is likely to be simple.
If you are smart enough to go counting teeth and if you are completely certain that the cam timing is correct then start checking other things.
cam timing is unlikely to affect the two front cylinder and the rear two cylinders. More likely to be cylinder which share camshafts.
I don't think that a rotor is in wrong as this would affect cylinders 2,8,3 and 5 or the other side 4,6,7 and 1. Also a stuffed coil or ignitor, ECU ignition drive or related wiring would affect one of these two sets of cylinders.
Try unpluging each cam sensor in turn. I don't have a good running standard car to test this on here at the moment ( all have aftermarket ECU). If it doesn't ran with either unpluged then it proves nothing. If it runs when one is unpluged and not when the other is unpluged then you have a faulty cam sensor.
Have you done a compression test. These engines are great but still can have compression problems.
Now I have been watching this thread and have come to work just now with a scrap piece of paper in my pocket with notes on it. I have been thinking and making notes for around 2 hours. The cylinders you have out are the back two and the front two. I recently changed a set of leads on a ute in a bit of a hurry. It ran on 8 before changing they where just very old and crappy. It ran on 6 after changing the leads - numbers 2 and 8 were out. I had the leads on the cap switched around. Both leads are beside each other on that cap. Now 1 and 7 are the same on the other cap. I have a hunch that you may have numbers 2 and 8 switched around and also 1 and 7 switched on the cap. I might be wrong as I am on the other side of the world but this what I would check first.
Now I'm off to change a fan idler bearing on a 1UZ conversion we have in the shop. I will keep Thinking. I will also check the injector grouping.
Cheers and good luck
Kelvin
If you are smart enough to go counting teeth and if you are completely certain that the cam timing is correct then start checking other things.
cam timing is unlikely to affect the two front cylinder and the rear two cylinders. More likely to be cylinder which share camshafts.
I don't think that a rotor is in wrong as this would affect cylinders 2,8,3 and 5 or the other side 4,6,7 and 1. Also a stuffed coil or ignitor, ECU ignition drive or related wiring would affect one of these two sets of cylinders.
Try unpluging each cam sensor in turn. I don't have a good running standard car to test this on here at the moment ( all have aftermarket ECU). If it doesn't ran with either unpluged then it proves nothing. If it runs when one is unpluged and not when the other is unpluged then you have a faulty cam sensor.
Have you done a compression test. These engines are great but still can have compression problems.
Now I have been watching this thread and have come to work just now with a scrap piece of paper in my pocket with notes on it. I have been thinking and making notes for around 2 hours. The cylinders you have out are the back two and the front two. I recently changed a set of leads on a ute in a bit of a hurry. It ran on 8 before changing they where just very old and crappy. It ran on 6 after changing the leads - numbers 2 and 8 were out. I had the leads on the cap switched around. Both leads are beside each other on that cap. Now 1 and 7 are the same on the other cap. I have a hunch that you may have numbers 2 and 8 switched around and also 1 and 7 switched on the cap. I might be wrong as I am on the other side of the world but this what I would check first.
Now I'm off to change a fan idler bearing on a 1UZ conversion we have in the shop. I will keep Thinking. I will also check the injector grouping.
Cheers and good luck
Kelvin
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