Short term fuel trim?
02-23-2010, 10:01 AM
#1
Junior Member
Thread Starter
Join Date: Feb 2009
Location: Springfield, MO
Posts: 17
Short term fuel trim?
I am getting a periodic EGR (0400 code) / ACV. Looking at the data stream on my obdii I noticed the 'short term fuel trim B1S1 was 099% and B2S1 was 000% - that seems wacky. Any ideas if that could be related to a dirty ACV/ injector or something else? I'm feeling like the engine might be a bit laggy and the fuel economy isn't great - but that might be msu.
02-24-2010, 01:41 PM
#2
Member
Join Date: Dec 2007
Location: Quebec, Canada
Posts: 30
is your engine bogging on idle??...cuz can be your EGR valve stuck open...or flows more gas its supposed.....check out for a vacuum leak on this side of the engine too, or as you said maybe an injector leak..take your fuel pressure...
02-24-2010, 09:33 PM
#3
Member
Join Date: Dec 2006
Location: Halifax Nova Scotia Canada
Posts: 185
Here's an article about fuel trim. does your scanner give you details like in this article? Maybe this can help you ...?
http://findarticles.com/p/articles/m...g=content;col1
There are lots others there too.
http://findarticles.com/p/articles/m...g=content;col1
There are lots others there too.
Last edited by Fasteddie01; 02-24-2010 at 09:36 PM.
02-26-2010, 05:41 PM
#5
Member
Join Date: Nov 2009
Location: va
Posts: 115
you might wanna check this out.. this was my egrp0400 code.. i didnt have to buy a $150 egr valve..
http://forums.maxima.org/4th-generat...ing-p0400.html
http://forums.maxima.org/4th-generat...ing-p0400.html
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