Go Back   HondaCivicForum.com > Your Ride > ECU Tuning & Fuel Management




Reply
 
Thread Tools Search this Thread
  #1  
Old 04-06-2008, 03:46 PM
roundyround roundyround is offline
My Garage
 
Join Date: Feb 2008
Posts: 11
Default WAY too rich.

i wish the above statement were true when it came to money.

I have a 95 civic race car, that i bought completly built (cage and all) but it had never been raced.

the car has a fuel delivery issue. it runs really rich, so rich that infact raw fuel comes out of the exaust pipe.

during the build up, the MAF sensor wires were cut, so there is no sensor. my question is, could this be my ENTIRE problem?>

what are my options for a carb intake (im pretty old school)

also, if i converted to a carb, could i completly omit the computer all together, or does it still need to be there for the ignition (keep in mind its a race car, so the computer is not needed for any accsessories or anything like that)
Reply With Quote
Sponsored Links
  #2  
Old 04-06-2008, 05:50 PM
roundyround roundyround is offline
My Garage
 
Join Date: Feb 2008
Posts: 11
Default RE: WAY too rich.

i just got the numbers of the block.
stamped:
D16Z6
3850026
Cast:
HA

the guy i bought it from siad it was a non-v tech JDM, but i dont know, I also know that some of these motors had a MAF and some didn't, is this motor supposed to have it?
Reply With Quote
  #3  
Old 04-13-2008, 10:46 AM
jamned jamned is offline
HCF Member
My Garage
 
Join Date: Jun 2007
Location: Los Angeles, CA
Posts: 267
Default RE: WAY too rich.

Wow. I suppose your car doesn't need your ECU, but you're already running without several fuel control sensors. Your O2 sensor seems like it's useless, regardless of whether it's connected to your ECU. Fuel-injected ECUs use the O2 sensor to control how rich/lean your mixture is. My 87 civic (D15A2, carbureted from the factory) uses a complex vacuum system to control fuel/emissions. While you could do without some of these systems, the symptoms you're describing are probably a result of no fuel control.

I would uh...get rid of this car or not buy it if that's possible.
Reply With Quote
  #4  
Old 04-14-2008, 01:06 AM
jamned jamned is offline
HCF Member
My Garage
 
Join Date: Jun 2007
Location: Los Angeles, CA
Posts: 267
Default RE: WAY too rich.

okay, so your engine isn't carbureted yet. Good. Try replacing your MAF wires. Your ECU should use either a MAP or MAF sensor to determine how much air is going into the engine. Once it knows, then it can determine how much fuel to inject. If you have MAF wires, then your ECU is expecting a MAF reading to know how much fuel to deliver. Without the MAF, your ECU might just be running in a failsafe mode.
Reply With Quote
  #5  
Old 04-17-2008, 08:26 AM
NorthWestPerformance NorthWestPerformance is offline
My Garage
 
Join Date: Apr 2008
Location: Spring Grove, IL
Posts: 22
Default RE: WAY too rich.

The MAF/MAP needs to be hooked up, without that, you might as well push the car down the track. That is the main sensor that measures vacuum/engine load and the ecu will determine how much fuel to dump in. That is your entire problem.
__________________
There is no replacement for displacement, except for some boost of course....
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump

Advertising

Featured Sponsors


New Sponsors
AMSOIL - Performance Oil Technology
K&N Engineering






All times are GMT -8. The time now is 01:00 AM.

© Internet Brands, Inc.
Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.