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Old 07-20-2008, 12:07 PM   #1 (permalink)
Hophead
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Join Date: May 2007
Location: North Vancouver BC
Posts: 46
3.4 swapped running rough

I mentioned this in my other thread - but since I have got no replies I thought I would post it up on its own- the swap is complete as of last week it fired up but runs really rough. I don't have an OBD connector yet so I can't pull codes. If the mass air flow meter is disconnected the motor starts and runs much smoother? I checked the mass air flow as per the FSM and it checks out. I am in the proccess of checking othe input signals to the ECM but I don't really know where to start. Anyone have any advice? What are the basic signals teh computer checks to run? I would assume Cam/crank sensors for timing, MAF for air volume/density, throttle position and........? I was really hoping this would have fired up and ran smooth, not my luck I guess.


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1992 4Runner -33x12.5 BFG AT's - 3.4 Swapped
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