Throttle Problems?
11-12-2008, 10:01 AM
#1
Throttle Problems?
My 92 VE has been acting up for awhile now. It's very intermittent, actually random describes it better. But, they way it acts when does act up I think it;s the TPS (Throttle Position Sensor) Because, it will accelerate fine one minute, and then just nose over as if I have taken my foot completely off the throttle. And, sometimes it will "buck" in a sense. Kinda like im just stompin on the gas. As if Throttle, Off, Throttle, Off, etc. And does it bad enough occasionally that tires will bark if it's in first. It's a 5spd btw. And there are some instaces that it will just die. The tach will drop say from 2200 to 0. Just blam in an instant but I know the car is still runnin because I'll be cruising at 60 when it happens and the car will layover. That I believe is the Cam Sensor. Those are just my theoires. Any other help at all would be very much appreciated.
11-12-2008, 10:12 AM
#2
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11-12-2008, 10:27 AM
#3
The engine's not locking up which leads me to beileve that whatever is controlling the tach is whats causing the problem. But, the MAF was replaced in January of this year. It's only got about 6,000 miles on it.
11-12-2008, 02:06 PM
#6
Could be one or a few of several things..
1. Cracked/Bad front coil packs.
2. Bad maf, or a loose maf harness connector.( Check the female connectors on the harness for loosness, smash them down a little if they are)
3. Intermittently failing power transistor unit.
4. Bad knock sensor causing a short in the electrical system(long shot)
5. Intermittently failing Cam position sensor.
Great thread to read---> http://forums.maxima.org/3rd-generat...g-problem.html
1. Cracked/Bad front coil packs.
2. Bad maf, or a loose maf harness connector.( Check the female connectors on the harness for loosness, smash them down a little if they are)
3. Intermittently failing power transistor unit.
4. Bad knock sensor causing a short in the electrical system(long shot)
5. Intermittently failing Cam position sensor.
Great thread to read---> http://forums.maxima.org/3rd-generat...g-problem.html
11-12-2008, 06:23 PM
#7
It idle's funny too. Like sittin at a light the car will bog down as if it's going to die but compensates at the last second and keeps runnin. We cleaned the IAC and it helped alittle. However, sometimes it will just die while idling. It's rare though. I used an Analog Voltmeter on the TPS and it tested fine. But, whatever is causing it is very intermittent. Some days it will go all day without acting up at all. Others, you'd think it was on the rag. 
11-12-2008, 06:25 PM
#8
No, the tach is the only thing that drops. And if I'm moving (which i always am when it does this) can push the clutch in and wait a second then all the warning lights come on. (Battery, Oil, etc.) Indicating that the motor has actually died.
11-12-2008, 07:40 PM
#9
It idle's funny too. Like sittin at a light the car will bog down as if it's going to die but compensates at the last second and keeps runnin. We cleaned the IAC and it helped alittle. However, sometimes it will just die while idling. It's rare though. I used an Analog Voltmeter on the TPS and it tested fine. But, whatever is causing it is very intermittent. Some days it will go all day without acting up at all. Others, you'd think it was on the rag.
11-13-2008, 06:41 AM
#12
11-13-2008, 08:03 AM
#14
11-14-2008, 06:40 AM
#15
11-14-2008, 09:57 AM
#16
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11-14-2008, 11:55 AM
#17
o ok. i was thinking perhaps you had a bad IGN relay or ignition switch (cutting power to ignition, fuel pump, injectors, ecu, speed sensor, etc) but if the speedo stays up then it can't be either of those.
11-14-2008, 11:13 PM
#18
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Cant be:
- some six simultaneous whatever,
- gas pressure as the problem is sudden,
- the top supply as u say already.
What is left: ECU (as THE driver for all simultaneous six), connectors, harness...
EDIT: Once in a lifetime theres only one instance where six smtg can die simultaneously, ALL at once. Plug called the BOSCH
Last edited by Wiking; 11-14-2008 at 11:58 PM.
12-01-2008, 05:33 AM
#20
The trouble(s) lurk(s) between those issues in the troubleshooting tree.
Cant be:
- some six simultaneous whatever,
- gas pressure as the problem is sudden,
- the top supply as u say already.
What is left: ECU (as THE driver for all simultaneous six), connectors, harness...
EDIT: Once in a lifetime theres only one instance where six smtg can die simultaneously, ALL at once. Plug called the BOSCH
Cant be:
- some six simultaneous whatever,
- gas pressure as the problem is sudden,
- the top supply as u say already.
What is left: ECU (as THE driver for all simultaneous six), connectors, harness...
EDIT: Once in a lifetime theres only one instance where six smtg can die simultaneously, ALL at once. Plug called the BOSCH
12-01-2008, 06:05 AM
#21
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Join Date: Dec 2004
Location: EU Scandinavia
Posts: 4,323
I have had /intentionally caused many kinds of error situations - never seen ECU to inform me on anything. Only time I have seen CEL blink is on video on this link http://forums.maxima.org/3rd-generat...ng-poorly.html
Bad ign sw may kill engine, bad injector wont (but surely can take most pwr out)
Last edited by Wiking; 12-01-2008 at 06:08 AM.
12-08-2008, 03:40 PM
#25
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Join Date: Apr 2008
Location: Manitoba Canada
Posts: 155
i would say coil packs, had the same prob when i bought my ve 5speed, it would buck and hesitate, i remember it dying one time as i was taking a turn and the pwr steering cut out, luckily i coasted into someones driveway, i also had the wrong plugs in there, or someone else did for that matter, also my packs had no cracks in them, so test them all and make sure your plugs are right and good and 3rd gens throwing a cel? ya right, i drove home from work one time with my maf and o2 unplugged, didnt even blink at me, its just for show 
Last edited by PMAX08; 12-08-2008 at 03:43 PM.
12-11-2008, 07:20 AM
#26
Thank 's you guys for all your help. I really Appreciate it. Btw, is anybody using or know of anybody successfully using Nistune on 3rd Gens?
P.S. I noticed the other day that it seems to start doing it when it starts heating up. (Switching from Open to Closed loop)
P.S. I noticed the other day that it seems to start doing it when it starts heating up. (Switching from Open to Closed loop)
Last edited by 94se5spd; 12-11-2008 at 07:25 AM.
12-11-2008, 07:25 AM
#27
12-11-2008, 08:46 AM
#28
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Join Date: Apr 2008
Location: Manitoba Canada
Posts: 155
ya mine did it when heating up as well, electronics dont work as well with heat, cold is there friend and really sounds like coil packs, i have an extra set but you should ohm them and we can work something out if you need them, my extra set are crack free and test normal, let me know
i would really check the plugs as well, the sohc engine plugs are diff than the dohc and shouldnt be used, and most places dont seem to know the diff and think everything is interchangeable, well places here do anyway unless its a performance shop
i would really check the plugs as well, the sohc engine plugs are diff than the dohc and shouldnt be used, and most places dont seem to know the diff and think everything is interchangeable, well places here do anyway unless its a performance shop
Last edited by PMAX08; 12-11-2008 at 09:07 AM.
12-11-2008, 02:16 PM
#29
ya mine did it when heating up as well, electronics dont work as well with heat, cold is there friend and really sounds like coil packs, i have an extra set but you should ohm them and we can work something out if you need them, my extra set are crack free and test normal, let me know
i would really check the plugs as well, the sohc engine plugs are diff than the dohc and shouldnt be used, and most places dont seem to know the diff and think everything is interchangeable, well places here do anyway unless its a performance shop
i would really check the plugs as well, the sohc engine plugs are diff than the dohc and shouldnt be used, and most places dont seem to know the diff and think everything is interchangeable, well places here do anyway unless its a performance shop
Well, it's got a set of spitfire platinums in it that my dad had in his 93 VE. They're about 8 or more years old and I cleaned them before I installed them but, they're may be something bad inside of them. I forgot to check the gap to before I installed them. So they maybe the culprit. When I get my next paycheck I'll try installing a set of NGK's
12-11-2008, 02:44 PM
#30
Well, it's got a set of spitfire platinums in it that my dad had in his 93 VE. They're about 8 or more years old and I cleaned them before I installed them but, they're may be something bad inside of them. I forgot to check the gap to before I installed them. So they maybe the culprit. When I get my next paycheck I'll try installing a set of NGK's
NGK only for the maxima..
12-15-2008, 06:07 AM
#32
12-15-2008, 01:17 PM
#33
12-15-2008, 06:14 PM
#35
12-17-2008, 05:10 AM
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