Sluggish VX at 40mph - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 05-20-2008, 02:45 PM   #1
Registered Member
 
slogfilet's Avatar
 
Join Date: Apr 2008
Posts: 112
Country: United States
Location: Vancouver, WA
Sluggish VX at 40mph

I've noticed this twice... when accelerating in my VX at about 40-45 mph in 5th gear, I get no response to additional throttle. I can floor it, but go no faster... I let my foot off the gas and coast down a bit, then try again and it's fine. This is on flat road, adn I can normally accelerate in 5th as low as 30mph. Any ideas?
__________________

__________________
slogfilet is offline   Reply With Quote
Old 05-20-2008, 03:32 PM   #2
EH3
Registered Member
 
EH3's Avatar
 
Join Date: Sep 2006
Posts: 70
Country: United States
check the base mechanical timing

do a general tune up if you haven't recently
__________________

__________________
EH3 is offline   Reply With Quote
Old 05-20-2008, 03:39 PM   #3
Registered Member
 
jadziasman's Avatar
 
Join Date: Jan 2007
Posts: 324
Country: United States
Downshift to 3rd gear and step on the gas. Woo hoo!
jadziasman is offline   Reply With Quote
Old 05-20-2008, 04:08 PM   #4
Registered Member
 
Join Date: Nov 2007
Posts: 22
Country: United States
Quote:
Originally Posted by jadziasman View Post
Downshift to 3rd gear and step on the gas. Woo hoo!
haha. yes!

Seriously though, I was getting some weird hesitation in my VX from, as my mechanic put it, a dirty throttle bottle. He cleaned it and no more random hesitations. Not sure if this fits your scenario exactly but figured I'd throw it out there.
GasSavers_mango is offline   Reply With Quote
Old 05-20-2008, 09:06 PM   #5
Registered Member
 
mkiVX's Avatar
 
Join Date: Dec 2007
Posts: 49
Country: United States
had that problem before
clean tps sensor or replace it
__________________
VX MASTER

SHWINN MOUNTAIN BIKE
GAS SAVER FAT BURNER

TOTAL MILES DISPLACED BY SHWIIN ON THE WAY TO WORK. 45 TOTAL MILES
mkiVX is offline   Reply With Quote
Old 05-20-2008, 10:11 PM   #6
Registered Member
 
suspendedhatch's Avatar
 
Join Date: Apr 2008
Posts: 445
Country: United States
Send a message via AIM to suspendedhatch
Quote:
Originally Posted by mango View Post
I was getting some weird hesitation in my VX from, as my mechanic put it, a dirty throttle bottle.
Throttle BODY. That was pretty funny. Valid point though. Your Honda throttle body should be cleaned once a year. Most people NEVER clean it. Make sure you buy the gasket BEFOREHAND cuz they can be hard to find sometimes.

Whether that's your only problem though I can't say. I think it's more likely your air filter or if your exhaust pipe has a restriction, possibly a clogged cat. Don't throw parts at it though. Have it diagnosed.
__________________

Civic VX, D15Z7, 5 Speed LSD, AEM EMS, AEM UEGO, AEM Twin Fire, Distributor-less, Waste Spark
suspendedhatch is offline   Reply With Quote
Old 05-21-2008, 04:03 AM   #7
Registered Member
 
Join Date: Mar 2008
Posts: 408
Country: United States
Quote:
Originally Posted by suspendedhatch View Post
Your Honda throttle body should be cleaned once a year. Most people NEVER clean it. Make sure you buy the gasket BEFOREHAND cuz they can be hard to find sometimes.
Can't it be cleaned without removing it? By spraying some carb cleaner inside? Once you removed it, isn't that how you'd be cleaning it, anyway?

Also, the shop manual (page 11-124) describes a procedure for checking it with a vacuum gauge. If it passes this test, does that indicate it doesn't need to be cleaned? And what if your car is running fine (e.g. no hesitation, and no signs of the throttle sticking). Is it a good idea to clean it anyway?

Sorry for all the questions! I just appreciate a chance to learn something new.
monroe74 is offline   Reply With Quote
Old 05-21-2008, 11:55 AM   #8
Registered Member
 
Join Date: Nov 2007
Posts: 22
Country: United States
Quote:
Originally Posted by suspendedhatch View Post
Throttle BODY. That was pretty funny. Valid point though. Your Honda throttle body should be cleaned once a year. Most people NEVER clean it. Make sure you buy the gasket BEFOREHAND cuz they can be hard to find sometimes.

Whether that's your only problem though I can't say. I think it's more likely your air filter or if your exhaust pipe has a restriction, possibly a clogged cat. Don't throw parts at it though. Have it diagnosed.
How embarrassing!

I did intend to write body but it seems that my fingers betrayed me somewhere along the way.
GasSavers_mango is offline   Reply With Quote
Old 05-21-2008, 01:20 PM   #9
Registered Member
 
Join Date: Apr 2008
Posts: 1,264
Country: United States
Location: up nawth
A plugged cat would give you low vacuum readings at low throttle percentages with no load.

regards
gary
__________________
R.I.D.E. is offline   Reply With Quote
Old 05-21-2008, 10:09 PM   #10
Registered Member
 
civic lover's Avatar
 
Join Date: Oct 2007
Posts: 123
Country: United States
I am not sure how you drive. If you drive with hypermiling in mind and never see above 3000 rpm it might not hurt to really whined the motor out a few times. These honda d series motors were made to scream. I drive very conservative, but sometimes pound on it. Cleans the motor out.
__________________

civic lover is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is there a OBDI or OBDII conversion for older vehicles? kozaz General Fuel Topics 3 11-13-2007 07:32 PM
ICE loads basjoos Experiments, Modifications and DIY 9 11-11-2007 08:32 PM
Hello All GasSavers_MikeD Introduce Yourself - New member Welcome 3 07-23-2007 10:34 PM
Blast from the past: Mobilegas Economy Runs? Spule 4 General Fuel Topics 8 11-20-2006 07:47 PM

» Fuelly iOS Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 09:16 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.