p1129 and high idle and poor gas mileage (18 MPG) aftr engine replacement
09-27-2020
#1
Registered!!
Thread Starter
Join Date: Sep 2020
Age: 72
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 
p1129 and high idle and poor gas mileage (18 MPG) aftr engine replacement
2008 Honda Civic EX, replaced engine with a JDM with less than 65,000 miles. Good compression app 175 psig on all cylinders, new spark plugs, thermostat, 02 sensors, coolant sensors. CEL high iddle 870 RPMs and p1129, did idle re learn replaced MAP sensor and throttle body.
Gas mileage is very poor 18 MPG. When o highway engine star bucking around 3200 RPMs. any help will be greatly appreciated
Gas mileage is very poor 18 MPG. When o highway engine star bucking around 3200 RPMs. any help will be greatly appreciated
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
steve_333
7th Generation Civic 2001 - 2005
12
01-24-2017 09:02 PM
Black_Hatch
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
03-01-2013 06:38 PM
greenhornet169
6th Generation Civic 1996 - 2000
1
08-29-2012 01:39 PM
speedster
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
01-24-2006 02:44 PM
