Post by
Potiusmori »
https://forums.nicoclub.com/potiusmori-u274550.html
Thu May 25, 2017 6:59 am
Hello everyone. So I just completed a engine and transmission swap on my 2001 sentra 1.8. Got engine and tranny from local jdm shop (JDM FLORIDA). Tranny shifts fine and the engine had alot of different parts on it so had to reuse intake manifold and everything attached, headers, egr and thermostat housing, PS pump, alternator, condenser and the plate on the engine head that has the valve timing sensor and camshaft position sensor on it ( new engine only had camshaft sensor no valve timing sensor. So anyway started it up and it idled fine with no cel's. When I put it in reverse and started to drive it drove fine until I pushed the gas a little harder and it started to buck and lost power but didn't stall. Got a cel so drove it very gently to auto parts store and scanned it. Entire drive had to baby gas pedal cause if I pressed too hard it would buck and had no power so let off gas and pressed again gently etc. After scanning it had the following codes: p1130,p1140,p0505,p0403 and p1171.
My question is what is causing the bucking during acceleration (over 2500rpms about). I looked into the codes and I can't figure out were to start looking. I would like to get rid of the bucking before chasing the other codes.