2004 Frontier XE sluggish acceleration on Nissan Frontier

Average mileage: 126,000 (100,000–152,000)
Engines affected: 3.3L V6, 4.0L V6
3 model years affected: 2004, 2005, 2006
4 people reported this problem
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problem details
2005 Nissan Frontier - 4.0L V6 100,000 mi,
My car is a Nissan frontier 2005. The speedometer is at 0 when the engine starts and vibration in the engine and accelerates slow
The vehicle accelerates real slow and has vibration in the engine. Ran a OBD2 scanner and got the scan trouble codes. There were two codes detected, a P0300 and a P0328. The P0300 was a multiple misfire problem and the other was the knock sensor code. These parts are both killers on a person's wallet. Now I see why the dealer repairs are so expensive. To replace the knock sensor on a V6 VG33 engine you gotta move the whole intake to include the upper plenum and half of the harness assembly just to get to the knock sensor. I was quoted 1298.00 to replace the KS at the dealer. This item is only held against the block by one bolt. It is all the before and after components that have to be removed and reinstalled that cost. What a flipping rip off. Oh by the way I paid $1500.00 to have my timing belt replaced. Again it wasn't the timing belt that was hard to do. It was all the extra components that have to be removed. After replacing the bad components as stated by the OBD2 scanner and clearing the trouble codes. The vehicle works great. I hope the best for the rest of the folks who have to deal with the same.
The engine miss real bad and it smokes
Replaced knock sensor $500.00