I did the 3.4 swap on my 93 4X4 pickup. Seems to run ok. My biggest issue is that I can not get the idle speed below 2000 RPMs. I suspect it is running in cold start mode all the time but haven;t found the right wiring change to make.
I know this issue has been discussed in another thread, but I haven't been able to find the thread. I suspect it is deep in a very old thread.
Any help or advise appreciated.
Scott

 

Hey buddy I have no clue about your question but your title says 4.3, may change it so it isn’t bypassed from people thinking you threw a Chevy motor in

 

I changed it when I caught the error. Not sure why it still shows 4.3 I checked the changes were saved.