jdm 4g36 swapped into 91 talon

[iblewUpMyDSM]

so about a month ago i destroyed my old 4g63 and swapped in a jdm 6 bolt from idk what car. now i know jdm engines have different sensors and such so i used absolutely every sensor and manifold from my old 4g and just used the jdm shortblock. started the car and ran perfectly fine first startup. I have a video to prove its first start . so i let the car idle up to temp and its running perfectly fine, i then go to drive it, 3 blocks down the road it starts running pig rich like 9;1. Now everytime i start it cold or warm its pig rich same 9;1 and sounds like its running on 2 cylinders at 600rpm. I can't drive the car because the throttle does nothing.. just dumps more gas and the car dies. it doesn't build proper vacuum it varies wildly between -7 and -11 and i know the car has no vacuum leaks at all.. I'm stumped as to what would cause this because the car ran perfectly fine on first startup and even idleing at temp before its first drive it was totally okay! Oh and one more thing. I unplugged the maf while it was idleing rich at 600rpm and the rpm's shoot to 2k and the car runs really lean like 19:1 but sounds like its running on all cylinders and the throttle is now responsive. Any help as to why this is happening?? thank you!

 

[bryanwheat]

I would look for a coupler blown off on the intercooler piping and do a boost leak test before doing anything.

 

[iblewUpMyDSM]

all cupplers and are on and tight. so that couldn't be the cause

 

[bryanwheat]

all cupplers and are on and tight. so that couldn't be the cause

Tight as in you looked at them, or tight as in you did a boost leak test and it held pressure well.

 

[iblewUpMyDSM]

cupples aren't split and all clamps are tight, i"ll do the boost leak test tomorrow becuase it makes sense, but besides piping leaks any other ideas? because i mean it running the way it does you'd think the piping would have to be totally disconnected.

 

[bryanwheat]

I would do the leak test, than reset the ecu by unhooking the battery since you had the maf unooked. Than run it for a little bit and check for codes.