Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

MAP/TPS/VSS sensor testing

Thread Tools
 
Search this Thread
 
  #1  
Old 03-30-2023, 05:24 PM
Md Jeff's Avatar
Md Jeff
Md Jeff is offline
Stage IV
Thread Starter
Join Date: Mar 2023
Location: MD
Posts: 4
Received 2 Likes on 2 Posts
Default MAP/TPS/VSS sensor testing

Hope someone can give me answer:

I've got an issue with my 2005 FXDLI, codes P0107/P0122 low voltage to the sensors. I went through removing the connectors to the sensors as I had no voltage on the power wires going to any the 3, all come off the same PIN 14 R/W wire on the ECM. When I did my last test I had the key on but forgot to put the run switch on... my question is in order for the sensors to receive power does the run switch need to be on? Figure it does as there is no engine light on with it off.

I had put the ecm connector back together, the seat back on, the fuel tank back on and when I finished reinstalling the air cleaner I looked down and realized I was testing with the run switch off, pretty deflating to say the least BUT I don't mind pulling everything back apart if it will save me a trip to the dealer for an ecm replacement.

Thanks and sorry for the long post.
 
  #2  
Old 04-09-2023, 07:05 AM
hrdtail78's Avatar
hrdtail78
hrdtail78 is offline
Road Warrior
Veteran: Marine Corp
Join Date: Mar 2013
Location: Alorton, Illinois
Posts: 1,897
Received 567 Likes on 393 Posts
Default

I don't know. Never checked in off. BUT in order to get this data from a bike that is not running. Kiil switch needs to be in on position.
 
  #3  
Old 04-09-2023, 09:09 AM
Md Jeff's Avatar
Md Jeff
Md Jeff is offline
Stage IV
Thread Starter
Join Date: Mar 2023
Location: MD
Posts: 4
Received 2 Likes on 2 Posts
Default

Originally Posted by hrdtail78
I don't know. Never checked in off. BUT in order to get this data from a bike that is not running. Kiil switch needs to be in on position.
Thanks for the reply.

Figured it out and went through the entire process again... live and learn.

Found the ECM was bad , not putting out the 5vdc needed for the sensors and I was lucky enough to find a replacement from the same year and same model, fired right up after the password lean procedure, no codes.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
lmarkie
Touring Models
0
11-06-2018 11:47 AM
Hutcheeez
Touring Models
3
05-27-2008 02:37 PM
idunno
Exhaust System Topics
6
10-27-2007 08:32 AM
dogtags
General Topics/Tech Tips
2
10-25-2007 04:14 AM
2008FLHP
Touring Models
0
10-23-2007 08:48 AM



Quick Reply: MAP/TPS/VSS sensor testing



All times are GMT -5. The time now is 11:33 AM.