The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-03-2020, 09:34 PM   #26
derotoreut
Roto Reuter thats the name...
 
derotoreut's Avatar
 
Join Date: Feb 2010
Location: Darien, NY
Posts: 1,853
Re: First start up, on first swap had some troubles

I was also having an issue with my Check Engine light being on. I ended up having a MIL code P0650, which appeared to be a generic malfunction indicator lamp (MIL) issue. I found out that this could be caused by damaged, open, shorted or corroded wiring. It could also be caused by poor grounds or failed MIL bulb or LED. When I connected my Dakota Digital RTX gauges I used their BIM-01-02, which pulls data directly from the PCM through the OBDII port. In the meantime the wire connection for the check engine light was not used. The PCM was showing this as an Open Wire and therefore turned on the check engine light and P0650 code. DD suggested that I connect the check engine light wire to the main DD module and turn off reading it through the BIM-01-02 module. This seemed to work and I was able to clear the code.

After that I started having an issue with my Check Engine light flickering on my Dakota Digital RTX gauges. It seemed like when it was first started it was fine, but then shortly afterwards the light would blink maybe once every 30-seconds. The more it ran, the shorter the blink duration. The light never stayed on though. I checked the OBD2 port for any codes, but wasn't finding anything. Once again I got in touch with DD and they said that sometimes these gauges need a small electrical load to keep the MIL off. I wired a small 12V lamp to IGN Not and the ground side to the DD check engine terminal on the main module. This definitely did the trick. So now when the key is first turned on, the check engine light comes on in the RTX display and the small 12V light also comes on. Once it's started both lights now go completely off.

Here you can see the DD gauge cluster when the key is in the ON position and engine not started. The check engine light is on along with a small light located just above the AC vent. NO I DID NOT DRILL THAT HOLE FOR THE LIGHT!! There was already a small hole there from the PO, which fit the indicator light perfect. This seemed to do the trick!!!
Name:  IMG_0866.jpg
Views: 592
Size:  49.9 KB
__________________
~ Dan
My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232
My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394

1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt
1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project

"Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977
derotoreut is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 12:52 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com