G35 Sedan V36 2007- 08 Discussion about the 2nd Generation G35 Sedan 2007 - 08

OBDII Issues "Not Ready" for Inspection and P1148

Thread Tools
 
Search this Thread
 
Rate Thread
 
  #1  
Old 01-07-2019, 11:19 AM
blackandwhite's Avatar
Registered User
Thread Starter
Join Date: Oct 2011
Posts: 56
Likes: 0
Received 0 Likes on 0 Posts
OBDII Issues "Not Ready" for Inspection and P1148

Back in October, I took my car in to be inspected. The car failed. I was told that the the reason was that some readings were "not ready" and that the Check Engine Light was not functioning, though they saw no codes (see inspection sheet below). I understand from past experience that this is normally due to not completing the drive trace required after disconnecting the battery, but at the time the car had been driven for close to 1500 miles prior to the last time the battery was disconnected (starter replacement in September).

This weekend, I bought a QuickLink Bluetooth OBDII reader, that allows you to communicate with the ECU and read and reset codes using a smartphone app. I had used one of these on my '05 Coupe and it served me pretty well. It gave a similar response, showing "Not Completed" for the same 3 systems that the Inspection showed "not ready" (see photos below) , but it also indicated that my Check Engine Light was on, though I have never seen it on on the dash display. It also reported back a code of P1148, which from my research here points to the Bank 1 exhaust manifold O2 Sensor (passenger side).

I plan to replace the sensor today, but my major concern is that the Check Engine Light does not come on. And I am trying to figure out what needs to be done to fix that issue.






 
  #2  
Old 01-07-2019, 03:31 PM
cleric670's Avatar
BANNED!!!

Join Date: May 2017
Location: Washington State
Posts: 14,790
Received 2,456 Likes on 2,150 Posts
Coupe 6MT Premium RAS
With the engine off, put the key in the ignition and turn it to ON, this initializes a lamp check, if you see all the other lights but don't see the service engine light then it was likely intentionally broken by a previous owner trying to sell the vehicle.

You can also hold the odometer button while turning the key to on, then quickly press the odometer 3 times to put the entire thing in test mode, press it to make gauges move.
 
  #3  
Old 09-26-2019, 11:46 PM
cthrulies's Avatar
Registered User
Join Date: Jul 2008
Location: Texas
Posts: 65
Received 1 Like on 1 Post
I have the same emissions nightmare: Catalyst - Not Ready, Evap - Not Ready and O2 Sensor - Not Ready. No Fault Codes though. Were you ever able to fix this?
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bongoz
Engine, Drivetrain & Forced-Induction
1
02-10-2016 02:00 AM
cyrus32
G35 Sedan V35 2003-06
2
06-23-2015 05:56 PM
akl128
G35 Coupe V35 2003 - 07
3
05-28-2013 11:51 AM
Xblackg35X
Audio, Video & Electronics
7
04-06-2007 10:08 AM
Kuneff
Engine, Drivetrain & Forced-Induction
4
03-27-2007 10:03 AM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: OBDII Issues "Not Ready" for Inspection and P1148



All times are GMT -4. The time now is 09:11 AM.