Notices
AEM EMS Get tuning help for your AEM EMS system.

AEM EMS Evo III Timing Errors and RPM Issue.

 
Old Jun 12, 2017, 09:40 PM
  #1  
Newbie
Thread Starter
 
Join Date: Jun 2017
Location: utah
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
AEM EMS Evo III Timing Errors and RPM Issue.

Im out of ideas, The only thing I can think of is there is in issue with my Series 2 box. Here are the details, I would love any ideas.

Car is a 2003 Evo III.

Series 2 Box (30-6310)

Car is a full track prep car.

Here is the problem-

When the car is cold, It runs well. After about 15 min into the first session on track the car starts having issues. It pops and feels a lot like the plugs are fouled out.

The rest of the sessions in the day the car has the issue when I first pull out on the track, For the first and maybe seccond pull through the gears then it goes away for about 10 minutes and then comes back.

Looking over the logs I am seeing timing errors when it is having the issue. and lots of them. Its also logging that the RPM's are jumping thousands of RPMS within unrealistic time frames when the problem is happening. Not sure what is causing the timing errors because the logs are showing the crank and cam sensors are in sync and are always the same. Here are some of my logs.
Attached Thumbnails AEM EMS Evo III Timing Errors and RPM Issue.-log.jpg  
jasonharward is offline  
Old Jun 13, 2017, 11:48 AM
  #2  
Evolved Member
iTrader: (30)
 
JohnBradley's Avatar
 
Join Date: Jan 2004
Location: Northwest
Posts: 11,391
Received 49 Likes on 34 Posts
What cam/crank setup, you have checked grounds and signal wires?
JohnBradley is offline  
Old Jun 13, 2017, 03:39 PM
  #3  
Evolving Member
iTrader: (24)
 
Roadrunr's Avatar
 
Join Date: Jun 2007
Location: Conestoga, Pa.
Posts: 347
Received 3 Likes on 3 Posts
I have read on here about Cam Position Sensors causing strange problems when faulty. Might be worth a try. It is very easily replaced. I also had a brand new AEM with issues that was replaced by AEM.
Roadrunr is offline  
Old Jun 13, 2017, 05:14 PM
  #4  
Newbie
Thread Starter
 
Join Date: Jun 2017
Location: utah
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Checked the wiring, Also swapped out cam sensors. Still no luck. For kicks I am going to swap ignition coils tomorrow.
jasonharward is offline  
Old Jun 30, 2017, 07:18 AM
  #5  
Newbie
 
Join Date: Aug 2015
Location: East Asia
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Did swapping coils solve the issue?
Cogito is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SBR INC
Evo 'For Sale' Electronics / Lighting / Audio
111
Aug 3, 2011 07:48 AM
SBR INC
Evo Vendor 'Group Buy / Specials' Classifieds
13
Jun 18, 2010 11:57 AM
SBR INC
Evo 'For Sale' Electronics / Lighting / Audio
8
Mar 23, 2010 06:26 AM
2JZfan
For Sale/WTB - Engine / Drivetrain / Power
10
Aug 20, 2009 11:38 AM


Thread Tools
Search this Thread
Quick Reply: AEM EMS Evo III Timing Errors and RPM Issue.


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.