hey , i have an s13 with a sr20det swap, i just got it in a trade on friday, drove it home, parked it, drove it a little saturday mornin, then came back saturday night to drive it and the car will start , but wont shift into any gear, the motor boggs down when i try to put it in gear, even when i engage the clutch it doesnt do ne thing...do you know what the problem is? lmk. thank you