Car shakes on IDE

[baseball1b]

I recently rebuilt my 4G63 and after it was put back on the car the engine shakes at IDLE but when its running i have no problems until I reach 100mph that the car seems to be locked or the engine sounds like it is loosing power. I would like to fix the problem with the idle and I think it might be a sensor since I already put the spark plug and wires and also the coil packs. I need some help if any one knows why the car myght work uneven at ide I would be very thankful.

 

[Redwidow]

What all did you do when doing the rebuild? Did you keep the Balance shafts? Has it done it since the rebuild or did it just start one day? Give us some more info and we may be able to help better

 

[baseball1b]

What all did you do when doing the rebuild? Did you keep the Balance shafts? Has it done it since the rebuild or did it just start one day? Give us some more info and we may be able to help better

yea, it started since the rebuild, since the moment we turned it on after the rebuild, what was done to the motor was they changed the pistons and rods, machined the heads and putted it back together, also I upgraded to a Garrett T 28 turbo, everything else on the car remained the same except the engine mounts, fuel filter and spark plugs, spark plug wires and coil pack.

 

[LD25Delta9]

Shot in the dark but have you checked your timing? If it's off by one degree it'll run but could idle real rough and it would also be apparent in the higher RPMs...

 

[jeffo]

It sounds like the balance shafts are out of phase. Easy mistake.