96 HX owner with a scanguage 2 sg2 questions - Page 2 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Thread Tools Display Modes
Old 05-21-2008, 06:28 PM   #11
Registered Member
bockwho's Avatar
Join Date: May 2008
Posts: 31
Country: United States
using SG2 it shows the loop closes very quickly. im in the outskirts of atlanta. and have a 38 mile one way commute. and its 60 to 70 degrees on avg right now during my evening ride into work and in the moring at 9am its a little warmer

I want to make a lean burn indicator. or a richness indicator.

ive been driving normaly (except for being easy on the clutch)

fuel weight
Yes draging extra fuel matters. think of how heavy 1 gallon of milk is. on avg 6 to 7 lbs. it think is weight of fuel. light airplanes fly higher and faster.

Wrong gear (high gearing)
Ive never gone to wot normaly 40 or so on tps. then just back off im never in that much of a hurry i arrive at work 45 min before my shift on most days.

fuel cut
I have a 5 speed and cut out is noticed as soon as i let off the gas.
off gas tps reads 9
cutout seems to happen around 10 to 13 tps reading


I find myself getting the best eco at around 17 to 19

just holding my speed on the flats and droping speed on the hills along with FE.

im also still fighting my egr code (i will pull the egr manifold or entire intake) im sure the entire intake is due a cleaning.

bockwho is offline   Reply With Quote
Old 05-21-2008, 07:08 PM   #12
Registered Member
Join Date: Apr 2008
Posts: 1,264
Country: United States
Location: up nawth
Question could you use an oscilliscope to monitor injector activity?

Bockwho there is a possibility you clutch doesn't have enough freeplay.

If the engagement point is very close to the end of the pedal travel, and there is no freeplay your clutch may not be completely disengaging.

Freeplay means there is about 3/4 inch of movement with very little resistance at the top of the pedal travel. The adjustment is under the dash where the rod that connects the pedal to the slave cylinder is located. Freeplay allows the throwout bearing to stop spinning all the time which can prematurely wear out the throwout bearing.

To add freeplay you need to shorten the rod by adjusting the nut in the direction of the slave cylinder.

As a clutch wears the freeplay gradually gets to be less and less until there is none left and your clutch is parutally disengaged.

As I said the best way is to pay close attention to the engagement point. If it is almost at the top of pedal travel, add some freeplay and see if that stops the slipping.

In about 25% of the times I had a customer complaint about a slipping clutch it was a simple freeplay adjustment, always great for customer relations.

Try using the fuel shutoff by downshifting to keep the engine speed above 1000 RPM. If you learn this technique you can reduce your idling by slowing down for a red light (or for any reason) using downshifting instead of sitting at the light wasting fuel idling.

Of course if your clutch is worn out and the freeplay adjustment attempt doesn't fix it (for free) then downshifting will accelerate you clutch wear slightly.


R.I.D.E. is offline   Reply With Quote
Old 05-21-2008, 10:37 PM   #13
Registered Member
bockwho's Avatar
Join Date: May 2008
Posts: 31
Country: United States
I will check that out thanks for the tip (ive also sent a pm follow up)

bockwho is offline   Reply With Quote
Old 10-18-2008, 05:55 AM   #14
Registered Member
brucepick's Avatar
Join Date: Feb 2007
Posts: 722
Country: United States
Location: Connecticut
monroe74 and bockwho,

How do I set up AFR measurement on my HX?
It has a 5-wire first O2 sensor.
I'm handy with a soldering iron and multitester but I don't know which wire and other background info.


Currently getting +/- 50 mpg in fall weather. EPA is 31/39 so not too shabby. WAI, fuel cutoff switch, full belly pan, smooth wheel covers.

Now driving '97 Civic HX; tires ~ 50 psi. '89 Volvo 240 = semi-retired.
brucepick is offline   Reply With Quote

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
Newbie zukgod1 Introduce Yourself - New member Welcome 5 06-12-2007 07:40 AM
Old school cylinder deactivation MetroMPG General Fuel Topics 11 06-09-2006 06:29 AM
Sharing Indexing Washers SVOboy General Fuel Topics 0 04-01-2006 01:36 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 08:19 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.