Resolved Car starts, but 2 cylinders not firing.

[Mike s 95 gst]

The CAS (cam angle sensor) controls the injectors timing through the ECU. Remove CAS (and mark it's position). Then turn key on and rotate CAS - injectors should fire 1 at a time.

2 of mine do not fire. I'm having this same issue cylinders 3 & 4 aren't firing and my cam sensor is about a month old.

I did mess with the crank sensor when this started happening thought could it be the crank sensor not sending correct signals to fire injectors?

I believe my ecm is good it was just tested before reinstall but I can inspect if necessary...

 

[1990TSIAWDTALON]

Old thread but it would be GREAT to have an answer so we can mark it resolved and would help you out. If you figure out your issue, come back in here and post up what fixed it please. I appreciate it.
Marty

 

[mikellinos]

Just to be sure, did you check if the wires going to the correct ignition coil? It happens to me once when i was in a hurry during an engine installation.

 

[Mike s 95 gst]

Just to be sure, did you check if the wires going to the correct ignition coil? It happens to me once when i was in a hurry during an engine installation.

You are 100% correct wish I would have remembered I did mess with them after now its good but slowly overheating once again the first time it wqs the banjo bolt on the block running to the water pump now unfortunately I'm dealing with the same issue it's barely circulating I'm guessing more crap stuck in the banjo bolt again I thought I cleaned all the parts well i just finished a rebuild but we'll see tomorrow I'm gonna take off the exhaust mani & check that bolt if it's not clogged I'm guessing I have a bad new "oem" from ebay water pump...

 

[Mike s 95 gst]

Old thread but it would be GREAT to have an answer so we can mark it resolved and would help you out. If you figure out your issue, come back in here and post up what fixed it please. I appreciate it.
Marty

It was in fact the incorrect spark plug routing unfortunately I forgot I took them off while diagnosing but now I'm still having the overheating condition I literally just put about 4k into the engine new rings valve job new bearings rods & crank it seems the water isn't circulating correctly I'm taking it apart tomorrow to check for clogs if not possibly a bad oem ebay water pump...

 

[1990TSIAWDTALON]

Ebay and water pump....not the best choice after spending that much on the motor. I run Asian or Gates. Haven't had a problem with either.
Thanks for following up the thread with the resolution! It will help others.