I just purchased a 1994 q45 over a few weeks ago. And this morning it started giving me a hard time to stay on. It would stay on for less than 10 seconds then it would shut off. My rpm was starting to drop down while it was idling , Then it would shut off.
Do anyone have an idea what the problem might be? I was wondering if it's the fuel filter. But i really am not sure if that is my problem. I would greatly appreciate it if someone can help me with this problem.
Also i am new to this forum, So i am not sure if i posted this in the right section.
Thanks
Need help with my 1994 Q 45
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tralokismQ4594
- Posts: 4
- Joined: Thu Nov 11, 2010 3:06 pm
- Car: 1994 Infiniti Q45
- Location: Miami FL
Re: Need help with my 1994 Q 45
Welcome to NICO! You have arrived at the right place.
Where are you located so we can know the climate?
Here's a link to a thread about Fuel Pressure testing.
post5742018.html?hilit=fuel#p5742018
Also the Field Service Manual is available for downloading at the following location.
http://www.nicoclub.com/FSM/Q45/1994_Q45/
Where are you located so we can know the climate?
Here's a link to a thread about Fuel Pressure testing.
post5742018.html?hilit=fuel#p5742018
Also the Field Service Manual is available for downloading at the following location.
http://www.nicoclub.com/FSM/Q45/1994_Q45/
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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
- Contact:
Re: Need help with my 1994 Q 45
to NICO!I agree with starting out with checking the fuel pressure. Have you had a "hive of bees" sound behind your back seat - especially at idle with less than 1/2 a tank of gas? That's the usual sign of a worn fuel pump. When they fail they typically take out the fuel pump control unit due to the excessive current draw.
Good luck!
Heath
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elwesso
- Posts: 30810
- Joined: Sun Feb 23, 2003 4:52 pm
- Car: 94 Infiniti Q45t 5 spd
2007 BMW M Coupe
2007 Infiniti G35 S 6MT - Location: Indiana
- Contact:
Re: Need help with my 1994 Q 45
Welcome to NICO!! I second the fuel pressure testing. Report back and that will give us something to go from.
Re: Need help with my 1994 Q 45
tralokismQ4594 wrote:I just purchased a 1994 q45 over a few weeks ago. And this morning it started giving me a hard time to stay on. It would stay on for less than 10 seconds then it would shut off. My rpm was starting to drop down while it was idling , Then it would shut off.
Do anyone have an idea what the problem might be? I was wondering if it's the fuel filter. But i really am not sure if that is my problem. I would greatly appreciate it if someone can help me with this problem.
Also i am new to this forum, So i am not sure if i posted this in the right section.
Thanks
I would also recommend checking the MAF (Air flow sensor) and it's wires. Mine was doing the same and the ECU gave me code 12 which is for MAF.