Failing Emissions Test
Thread Starter
|
Junior Member
Joined: Jul 2025
Posts: 20
Likes: 1
From: Atlanta
Failing Emissions Test
Hello,
I have a 2012 Jaguar XKR that has been sitting for a year. I decided to get it registered here in Atlanta. So, I used a jump box to start it and took it to a local shop for an emissions test. It failed (READINESS). I put in a new battery. Still failed. On advice of the shop operator I drove it for 40 miles hoping to reset the computer. No luck. Any suggestions?
Thanks in advance.
Ike
I have a 2012 Jaguar XKR that has been sitting for a year. I decided to get it registered here in Atlanta. So, I used a jump box to start it and took it to a local shop for an emissions test. It failed (READINESS). I put in a new battery. Still failed. On advice of the shop operator I drove it for 40 miles hoping to reset the computer. No luck. Any suggestions?
Thanks in advance.
Ike
Veteran Member
Joined: Apr 2013
Posts: 11,903
Likes: 6,415
From: Kaysville, Utah, US
3/4 tank of fuel, nice easy long trip of at least 100 miles with little stopping.
The EVAP is the last and longest self-test. Some locales are okay with one Not Ready light, like where I live. It saves aggravation. And fuel.
The EVAP is the last and longest self-test. Some locales are okay with one Not Ready light, like where I live. It saves aggravation. And fuel.
Veteran Member
Joined: Aug 2010
Posts: 10,122
Likes: 7,127
From: Atlanta suburbs
@johnsonike Because your XKR has been sitting for about a year, I suggest that you put a can of BG44K fuel additive in your gas tank before your next fill-up. That way is best, in order to mix it thoroughly with the gasoline. BG44K effectively cleans fuel injectors.
Veteran Member
Joined: Apr 2008
Posts: 3,698
Likes: 1,695
From: Ottawa, Ontario, Canada
Trending Topics
Veteran Member
Joined: Aug 2010
Posts: 10,122
Likes: 7,127
From: Atlanta suburbs
Senior Member
Joined: Nov 2024
Posts: 139
Likes: 146
From: Tyler, TX
From “Technical Training 688-JAG: Advanced Electrical Systems and Diagnostics”, page 3-15, covering Control Module Programming:
“When resetting the battery (hard reset), disconnect both battery leads and touch them together to fully discharge all control module capacitors.
NOTE: A hard reset does not repair a fault condition. It simply brings all control modules back to their baseline condition. If a hard reset eliminates the symptoms, then further diagnosis is needed to determine the cause of the conditions, i.e. low battery causing a single control module to come off line temporarily.”
“When resetting the battery (hard reset), disconnect both battery leads and touch them together to fully discharge all control module capacitors.
NOTE: A hard reset does not repair a fault condition. It simply brings all control modules back to their baseline condition. If a hard reset eliminates the symptoms, then further diagnosis is needed to determine the cause of the conditions, i.e. low battery causing a single control module to come off line temporarily.”
Thread
Thread Starter
Forum
Replies
Last Post
Johntechwriter
XJ XJ8 / XJR ( X308 )
7
Sep 19, 2019 07:24 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)