How to disable P0622 CEL - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community



How to disable P0622 CEL

Reply
 
 
 
Thread Tools Search this Thread
Old Apr 1, 2015, 03:16 AM   #1
Newbie
Thread Starter
 
Join Date: Nov 2012
Location: Germany
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
How to disable P0622 CEL

Hi fellow flasher

I installed an EvoECU in my 3g CSM and got it working so far with 96532706.
EGR FPR and Wastegate Selenoids are not throwing CEL anymore due to disabling the following Periphery bits
EGR: FAA bit11 ; FCA bit 14 13 and 9
FPR: FCA bit 15 ; FDA bit 11
Wastegate: FCA bit 15

Now I get the P0622 after an hour of cruising and couldn't find an answer how to disable that DTC since my alternator just doesn't have this connection.

Pin42 on ECU is free.

Would be glad if som1 had figured out and would share the knowledge.

Thanks
-vic-
Offline
 
Reply With Quote
Old Apr 3, 2015, 05:45 AM   #2
Newbie
Thread Starter
 
Join Date: Nov 2012
Location: Germany
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
What Signal is expected by the ecu from the alternator?
Offline
 
Reply With Quote
Old Mar 24, 2017, 08:01 PM   #3
Newbie
 
Join Date: Jul 2014
Location: Vancouver WA
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts

Drives: 92 Galant VR4 659/1000

Quote:
Originally Posted by vicore View Post
What Signal is expected by the ecu from the alternator?
My Evo8 ECU swapped gvr4 has the same code. I would be very interested in knowing what the ECU should see. Would you test the signal wire to the ECU in volts? On a running evo of course.
Offline
 
Reply With Quote
Old Mar 26, 2017, 11:12 AM   #4
Evolved Member
iTrader: (6)
 
cdrinkh2o's Avatar
 
Join Date: Nov 2006
Location: San Francisco
Posts: 674
Thanked 24 Times in 23 Posts

Drives: 2005 Evo VIII SSL

Pin 41 on the Evo 8 ECU must be connected to the FR terminal on the Alternator. The ECU sends a 5V DC signal on pin 41 to the voltage regulator inside the alternator. This causes the voltage regulator to begin controlling the generator field circuit. Once the alternator is enabled by the ECM during startup, the voltage regulator controls output independently of the ECM.

P0622 usually means that you don't have a circuit between pin 41 on the ECU and the FR terminal on the alternator. Tone it out to make sure you have continuity.

Pin 33 on the Evo 8 ECU must be connected to terminal G on the alternator. This allows the ECU to limit the generator output current by duty control of the continuity between generator terminal G and the ground.
Offline
 
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
log boost with JDM MAP sensor (updated instructions) mrfred EcuFlash 831 Sep 17, 2017 06:11 AM
How-To: EGR Removal VIII/IX (and charcoal/EVAP canister) fostytou Evo How To Requests / Questions / Tips 317 Jul 27, 2017 01:57 PM
Scaling Omni 4bar MAP for JDM E7. Benja EcuFlash 9 Mar 26, 2017 10:21 AM
Omni 4 bar MAP sensor ROM compatibility settings for USDM Evo 8/9 mrfred EcuFlash 258 Feb 19, 2017 11:23 AM
Problems setting up Omnipower 4 bar MAP sensor joat09 EcuFlash 0 Sep 8, 2016 01:20 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -7. The time now is 05:23 PM.


 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: