1. it has a sluggish pull in first n second some of the way. i dunno if my transmission is going out or its just that way in the q?
2. also everytime i hit a large bump at a good speed i hear this thump in the back? sometimes front.. dontkno wif its because the suspension is a lil stiffy?
3.i get a check engine lights sometimes while the car shakes on drive and reverse. goes away after a while.?
4.my dam boss system is completely out from the back and when i do plug them in they make this really loud beeeeeeeepp!
front 2 work but for some reason the left is way louder?
PLEASE HELP IN ANY OF THESE TOPICS PLZ..
95 q45 having a bit of problems
-
goody90q45
- Posts: 3679
- Joined: Wed Aug 17, 2005 2:07 pm
- Car: 1992 Infiniti Q45 (sold)
- Location: Orangevale, CA
Re: 95 q45 having a bit of problems
1- Is your mileage over about 120-140k? Your probably due for a new fuel pump and possibly a controller (FPCU). The fuel pressure measured after the filter should be 34psi at idle and 44psi at full throttle under load. Could also be injector related.
2- Is the rear end sliding going around corners? Time for new struts and bump stops all around. Tokiko blues are about your only choice at about $80/each.
3- Pulling codes will tell you (us) a lot. The ECU is behind the passenger side kick panel which is held in place by a 10mm nut under a 1" square carpet flap. Instructions for pulling codes can be found searching Nico or in the Tech Help section at Q45.org. I'm going to guess there's problems with an injector or two. Look for the directions on ohm testing injectors while your at Q45.org and check them and the knock sensors.
4- Each of the 4 speakers in the Bose system has an amp. It sounds like at least 3 of yours are shot. It's a very common problem. You can reach in through the trunk and unplug the rears very easily. The door panel will need to be removed to get to the fronts. I have used amps for sale in the parts forum.
All your problems are very common to the 15-20 year old Q45 and all are easily repairable. Read all the sticky threads at the top of this forum and do the same at Q45.org to help educate yourself on how the Q works. It will all start making sense pretty quick. With some basic maintenance you can have yours running great.
Welcome to NICO.
2- Is the rear end sliding going around corners? Time for new struts and bump stops all around. Tokiko blues are about your only choice at about $80/each.
3- Pulling codes will tell you (us) a lot. The ECU is behind the passenger side kick panel which is held in place by a 10mm nut under a 1" square carpet flap. Instructions for pulling codes can be found searching Nico or in the Tech Help section at Q45.org. I'm going to guess there's problems with an injector or two. Look for the directions on ohm testing injectors while your at Q45.org and check them and the knock sensors.
4- Each of the 4 speakers in the Bose system has an amp. It sounds like at least 3 of yours are shot. It's a very common problem. You can reach in through the trunk and unplug the rears very easily. The door panel will need to be removed to get to the fronts. I have used amps for sale in the parts forum.
All your problems are very common to the 15-20 year old Q45 and all are easily repairable. Read all the sticky threads at the top of this forum and do the same at Q45.org to help educate yourself on how the Q works. It will all start making sense pretty quick. With some basic maintenance you can have yours running great.
Welcome to NICO.
Re: 95 q45 having a bit of problems
thank u very much
Re: 95 q45 having a bit of problems
it has about 190k> the fuel pump had stopped working one time when i completely ran out of gas but then after a couple of days it started up again. ill check the pressure when i have time...
and the suspension doesnt slide its really stiff just bumps hard time to time.
and the suspension doesnt slide its really stiff just bumps hard time to time.