SR20DET HELP! I am stumped on this one!

[dan222000]

Ok I have a bit of long story with my car. I had a 1996 240SX SE with an S13 SR20DET Redtop that I wrecked. I puchased another 1996 240SX SE and swapped my running motor into the new chassis. My friend was helping me with the wiring since I wanted to clean it up. He had the car running fine with his new harness. I then pulled it out to clean it up and finish wrapping it. I then reinstalled it and the car is running poorly.

The car starts up fine and then idles really bad. I have check and/or replaced the following.1. Check timing and pulled valve cover to double the CAS. Timing at the moment is way off even though the CAS is set corrrectly. I have even replace the CAS with a good working one from my friends car.2. New MAFS3. New temp. Sensor4. New Plugs6. New fuel rail7. Injectors all check out8. Coilpacks all check out9. Performed a leak test with a smoker. No leaks!10. New FPR (tomei unit with gauge) Gauge reads 40psi11. ECU is throwing a 55 code12. Check thottle position sensor and it's within spec.

I am completely stumped! Can anyone help!

[dan222000]

Let me give you guys some more information. The car cranks and fires. I get some black smoke and the car is running rich.

The wiring harness is brand new from wiring specialties. It's the new S14 SR20DET WS engineered harness.

[nissan24009]

if your timing is off and your cas is lined up correctly! you have to crank the timing chain until the dots are lined up with each other

http://www.frsport.com/How-To-....html

[dan222000]

I have already check my timing this way. All points line up peferct!