Sohc to Dohc swap problems!!!

[ls1240]

Hey I have a 1990 240sx hatch and I just finished my sohc to Dohc swap the motor I got was from a 95 240 and it was in an 92 240 I got from a friend and I drive the car and it drove fine I drove it home and I got it Friday and finished it Tuesday and I started it and it idled fine but drove like complete dog crap I had an Idea I swapped the fuel pumps and it made a dramatic difference but it hesitates and bogs at low rpms. My sohc did he same thing... It's got a new fuel filter and spark plugs are good it's really makin me mad now I changed my motor really hoping it would. Be alot beter and it is at only high rpms can anyone help?

[jrad240sx]

check your tps voltage make sure its at .45 to .5.....after that try rotory button or cap.