q45t very slow no power need help

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q45bowlinggreen
Posts: 5
Joined: Sun Dec 23, 2012 8:53 am
Car: 01 q45t

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ok this car driving me nuts
has no power at all feels slow unless i punch the gas pedal and it moves
sometimes in the morning i put it in drive it takes couple seconds for it to engang gears or something but it shifts smooth theres no slip light on
i do have ses light
for engine codes
p0325
p1110 i think and p1145
what do i have to do to fix these issues please help before i decide to sell this thing but i hate to sell it


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Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
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q45bowlinggreen wrote:ok this car driving me nuts
has no power at all feels slow unless i punch the gas pedal and it moves
sometimes in the morning i put it in drive it takes couple seconds for it to engang gears or something but it shifts smooth theres no slip light on
i do have ses light
for engine codes
p0325
p1110 i think and p1145
what do i have to do to fix these issues please help before i decide to sell this thing but i hate to sell it
p0325 - knock sensor, left bank
p1110 - intake valve timing control, left bank
p1145 - intake valve timing control position sensor, right bank

The VTC stuff is kind of unusual... knock sensors are a common problem.

Check out the factory service manual, available at http://www.nicoclub.com/FSM/ for a full description of what each of these codes means and how to diagnose them...

Good luck!

Heath

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paranoidjack
Posts: 1417
Joined: Mon Oct 03, 2005 3:57 pm
Car: 2012 Infiniti M56 S
2003 Infiniti M45
2001 Infiniti QX4
2000 Infiniti Q45
1998 Nissan Pathfinder
1996 Infiniti J30

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I had the p1110 code. I had to replace the sensor, but the issue was the wiring harness/plug. I don't recall exactly but I think it was brittle and I broke it catching a ratchet on it...not too hard to do, it was very brittle. Fortunately I had another engine lying around with a good one, but that was a PITA, very tough to reach...back side of the motor against the firewall.

...but cake compared to the knock sensor.

Either time to get your hands dirty or sell the car, paying a shop to do the work will be $1000 alone. Parts more, if done right.


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