OK so the story goes, when the car see's any boost, ANY boost, the car stumbles. It was determined that the secondaries are not working at all. I checked every possible thing and they are fine, the wiring is fine, resistors are fine, ect.
Now I have to verify this tomorrow with another test drive, but it appears that with the car cold, the secondaries operate, when the car warms up they don't??

ANYONE HAVE A CLUE?????

 

The only way to verify that is to measure the voltage across the secondaries. Any boost; I do not think the secondaries come on at very low boost. If you engine stumbles even as vacuum goes to .5PSI boost, then it is not the injectors.

What engine work if any was been done between a good running engine and now?

 

Bad blow off valves? Change them both and see?

 

I think he means secondary injectors not the second turbo.