240sx ECU codes 34 & 55 on SR20DET Redtop

[SlideStyle180]

A while ago I had some exhaust leak problems coming from the manifold, very common . This is on an 89 240sx w/ Red Top SR20. Before sealing that bad boy up, I disconnected the positive side of the battery. As soon I was done, I reconnected the battery and everything sounded just fine. Idle'd normally. As soon as I get it going, the motor starts to shake... I know, most of you would think that this would be cause by the engine mounts. Well last time I checked, they were fine and everything bolted down tightly. This distinct smell of burning gas is circulating through the air. I tried driving it normally but it feels a lot slower than usual. When I accelerate the car sounds like a WRX to be honest =P I pulled some ECU codes just now and the numbers read 34 and 55 = "34 Detonation (Knock) sensor + 55 Normal engine management system operation is indicated" Don't know where to locate the knock sensor to be honest. This earthquake in my car sucks when I drive it to work. Any info would be appreciated.

[stevesr20]

check and make sure the wga arm is not off the manifold... Do you have a boost gage?

[SlideStyle180]

To be honest the actuator isnt off the turbo so I wouldn't really consider it being the problem. I would think that most of the vibrating would start before it. Regardless, it still idles fine, doesnt die out. Unfortunately I don't have a boost gauge.... =X maybe i should get one right away

[stevesr20]

not sure about the vibrating, but i know when my wga arm fell off it sounded very diffrent, kinda like a wrx... the wga arm was off the little tab conecting to the manifold it opens and closes the door inside the manifold.... Was just hopeing for a easy solution for ya. good luck.