Some questions about acceleration

Got questions about your Infiniti? We're here to help, and it's FREE!
Yimu
Posts: 22
Joined: Thu Jun 08, 2006 4:24 am

Post

Hey guys, sorry to bother you guys again. The last suggestions for the fuel injectors were really helpfulI still havnt replaced the injectors yet, but right now what happens is it seems like my car is really lack of power or acceleration. Especially when i am on the first 2 gears, when the car reaches 80, it accelerate pretty nice.Just wondering is this due to the injector, or any other reasons?And when i brake, a squeeking sound comes out, any idea the rotor or the pads?Thanks very muchI love this forum


User avatar
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:

Post

Replace the injectors and we'll go from there... how many injectors do you have that are bad?

if youre even running on 7 cylinders it wont run very quick.

richardchen0530
Posts: 40
Joined: Thu Apr 13, 2006 7:19 pm
Car: 94 Q45

Post

Only 1 injector is badit shakes a little bit but can barely feel, just the acceleration is pretty bad til i reach 80Overall it starts to eat a lot of gas and seems the engine is a bit noisy, not the cranking sound, more like a muffler type of sound but seems coming out of engine.Any ideas about the engine guys?Thanks very much

User avatar
Aussie Q45a
Posts: 186
Joined: Wed May 18, 2005 4:09 pm
Car: '89 JDM Q45a, Skyline GTR, '95 Fairlane. MB Winnebago

Post

richardchen0530 wrote:Only 1 injector is badit shakes a little bit but can barely feel, just the acceleration is pretty bad til i reach 80Overall it starts to eat a lot of gas and seems the engine is a bit noisy, not the cranking sound, more like a muffler type of sound but seems coming out of engine.Any ideas about the engine guys?Thanks very much
What RPM's do you have at 80 mph? Maybe you have a transmission problem and are in limp home mode. Do a self diagnosis check for the transmission and see what codes you get.

User avatar
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:

Post

I really wouldn't run it too much with a bad injector... can't be good for the engine...

Heath


Return to “Infiniti Online Mechanic”