Loss of power
04-28-2005, 08:33 PM
#1
Member
Thread Starter
Join Date: Oct 2004
Posts: 33
Loss of power
Sorry if this has been posted before, I did a search and found a few posts (though short) about this topic in the general maxima forums but nothing very specific.
To start - I've checked my codes and I get the 5, 5 code (meaning no codes). My KS is about 6 months old, and again, no codes to indicate it's gone out. I only use premium 93 octane fuel. Last weekend I noticed that the service station where I change my oil had left my air filter unsecured, leaving a slight gap where it should have been sealed.. I only noticed this when I decided to do my own oil (so 3k miles since then) and replace my air filter and realized that the back two clips (facing firewall) were unsecured and there was a gap at the seal. I'm concerned but unsure how this may have caused, be causing my problems.
Here are my problems. In the last few weeks I've noticed that when I jump on the gas my car will kinda stall out.. But only when I gun it.. For instance, when getting on the interstate, if I keep the RPM's steady at around 2k to 3.5k the engine will purr and I'll gain speed steadily - just like my grandma... If at any time though I jump on it, and bring the RPM's up fast I'll get the surge of power (like I should) followed shortly by a sudden loss of power (like I shouldn't) that's usually followed by another short surge of power, and again a short loss of power. I'm not talking RPM's over 6000 or speeds over 50, this will happen if I'm at a stop sign and gun it, just as certainly as if I'm trying to pass a car on the interstate.
Here are my observations; Seems to happen when the engine is warm - cold engine and it usually gives me no hesatation, and purrs through the whole RPM band. I thought it might be bad gas so I stopped going to the usual place and got gas from 2 other places, same issues both tanks. I've tried little things like adding fuel injector cleaner to the fuel mix and yes, changing the air filter and securing the seal. I changed the fuel filter about 8 months ago, so hoping it's not that (fuel filter mounted at the firewall, incase there is more than one). I changed the spark plugs about 1 1/2 years ago.. Again, I'm not getting any codes so thinking probably not sensor failure related, but I could be wrong.
Anyway, was hoping one of you guys might share some insite with me on this. Thanks.
To start - I've checked my codes and I get the 5, 5 code (meaning no codes). My KS is about 6 months old, and again, no codes to indicate it's gone out. I only use premium 93 octane fuel. Last weekend I noticed that the service station where I change my oil had left my air filter unsecured, leaving a slight gap where it should have been sealed.. I only noticed this when I decided to do my own oil (so 3k miles since then) and replace my air filter and realized that the back two clips (facing firewall) were unsecured and there was a gap at the seal. I'm concerned but unsure how this may have caused, be causing my problems.
Here are my problems. In the last few weeks I've noticed that when I jump on the gas my car will kinda stall out.. But only when I gun it.. For instance, when getting on the interstate, if I keep the RPM's steady at around 2k to 3.5k the engine will purr and I'll gain speed steadily - just like my grandma... If at any time though I jump on it, and bring the RPM's up fast I'll get the surge of power (like I should) followed shortly by a sudden loss of power (like I shouldn't) that's usually followed by another short surge of power, and again a short loss of power. I'm not talking RPM's over 6000 or speeds over 50, this will happen if I'm at a stop sign and gun it, just as certainly as if I'm trying to pass a car on the interstate.
Here are my observations; Seems to happen when the engine is warm - cold engine and it usually gives me no hesatation, and purrs through the whole RPM band. I thought it might be bad gas so I stopped going to the usual place and got gas from 2 other places, same issues both tanks. I've tried little things like adding fuel injector cleaner to the fuel mix and yes, changing the air filter and securing the seal. I changed the fuel filter about 8 months ago, so hoping it's not that (fuel filter mounted at the firewall, incase there is more than one). I changed the spark plugs about 1 1/2 years ago.. Again, I'm not getting any codes so thinking probably not sensor failure related, but I could be wrong.
Anyway, was hoping one of you guys might share some insite with me on this. Thanks.
04-29-2005, 04:35 AM
#4
Member who somehow became The President of The SE-L Club
iTrader: (19)
Join Date: Jun 2001
Posts: 16,033
Originally Posted by Maxima_NRH
Here are my problems.
if I keep the RPM's steady at around 2k to 3.5k the engine will purr and I'll gain speed steadily - just like my grandma... If at any time though I jump on it, and bring the RPM's up fast I'll get the surge of power (like I should) followed shortly by a sudden loss of power (like I shouldn't) that's usually followed by another short surge of power, and again a short loss of power. I'm not talking RPM's over 6000 or speeds over 50, this will happen if I'm at a stop sign and gun it, just as certainly as if I'm trying to pass a car on the interstate.
if I keep the RPM's steady at around 2k to 3.5k the engine will purr and I'll gain speed steadily - just like my grandma... If at any time though I jump on it, and bring the RPM's up fast I'll get the surge of power (like I should) followed shortly by a sudden loss of power (like I shouldn't) that's usually followed by another short surge of power, and again a short loss of power. I'm not talking RPM's over 6000 or speeds over 50, this will happen if I'm at a stop sign and gun it, just as certainly as if I'm trying to pass a car on the interstate.
nice car,f'd up motor haha
04-29-2005, 05:49 AM
#6
Member
Thread Starter
Join Date: Oct 2004
Posts: 33
Originally Posted by njmaxseltd
You have faulty coil packs. I just went throught the exact same thing with my 99. No codes stored either. The surge is only noticed under a load (WOT) starts around 4K and surges power back and forth. Same thing happens from a stop with a punch of the throttle. I tried cleaning my coils, measured them, everything seemed just fine, car's idle was smooth. I eventually changed all 6 coils, it was a night and day differance in how the car pulled. The surge is gone and power is smooth all the way up over 6 grand once again.
04-29-2005, 09:13 AM
#8
Originally Posted by matty
What ones are the faulty coil packs, Hashin or the Misto's ?? I forget what people said
-matt
-matt
You can usually buy replacements on eBay for pretty cheap...
04-29-2005, 02:47 PM
#9
Senior Member
Join Date: Apr 2005
Posts: 119
same problem
just got my car 3 weeks agoso I don't know him very well....when the car is cold, everything's fine...when it's getting at normal driving temp, it seems to hesitate when I'm trying to pass over a stop sign in 2nd gear (around 1000 rpm untill 2300 rpm)...I changed my plugs last week and my exhaust (for a flowmaster) and the problem is still going on...when I gun it (cold), it pulls really hard 'till the redline and when hot, seems to be reaaallly slow to get up to high rpm's..that's probably why my friend with a 2000 celica gt-s is eating me all the time like that....do you think it could be anything else than the coil packs?? It seems to be pretty expensive just for a guess....help me please!!!
thanks!
J-P
thanks!
J-P
04-29-2005, 04:29 PM
#13
doesnt sound like ur coil packs...because its happening only when the car is warm. Could it be a clogged cat maybe? vaccum leak possibly too. i dontk now about the 99's too much but i do know they did have coil pack problems but i would think u would throw a CEL for that.
04-29-2005, 07:39 PM
#16
Member
Thread Starter
Join Date: Oct 2004
Posts: 33
Originally Posted by Maimaxima
On my 96 had some what the same problem, no CEL, I start check Sensors, I found my Knock Sensor cracked, I'm getting a new Knock Sensor ($ 170.00)
04-29-2005, 07:57 PM
#17
Supporting Maxima.org Member
iTrader: (54)
Join Date: Feb 2001
Location: Northern Jersey
Posts: 10,166
Originally Posted by Maimaxima
On my 96 had some what the same problem, no CEL, I start check Sensors, I found my Knock Sensor cracked, I'm getting a new Knock Sensor ($ 170.00)
-matt
03-20-2010, 02:02 PM
#19
Newbie - Just Registered
Join Date: Mar 2008
Posts: 11
hey maximaNRH believe it or not njmax is very correct, when u dnt have a load on it the coils run fine but once u put a load on it like trying to launch from a redlight or jus tryin to pass someone n u WOT then it surges like crazy. another thin u cud do if u dnt feel like buying coilpacks or depending how many miles u have on it is take out ur coilpacks n wrap them in electrical tape but u have to do it very nice n neat maybe couple rounds on the top boot n bottom boot cuz if u wrap too much its not gonna fit back into the hole n u wud notice a difference when ur done. good luck bud
Thread
Thread Starter
Forum
Replies
Last Post
TallTom
5th Generation Maxima (2000-2003)
50
07-08-2022 09:54 AM