Okay, I think I'm good. I swapped both components, which were for the 350, from my original ECM that wouldn't turn the light on to the one I just bought and now the light not only works, when I plug...
Type: Posts; User: Dan Brown
Okay, I think I'm good. I swapped both components, which were for the 350, from my original ECM that wouldn't turn the light on to the one I just bought and now the light not only works, when I plug...
I think I'm on to something. I bought another ECM from Ebay and it makes the light come on. However, I'm not sure the two removable components are compatible with a 350 (5.7L). Can somebody tell me...
Okay, my engines not running as it's not ready to start yet, but, I do currently have 12.5 volts on A5 at the ECM connector. Anybody have any idea why?
I'm not sure I'm following what you are saying about the brown/white wire going to pin D in the ALDL, but I still can't make the check engine light come on knowing that the bulb is good and there is...
Okay, thx a lot, looks just like the way mine is currently wired. Now, since my check engine light won't come on, is there anything else that could be causing it to not come on besides a failure...
In the 1227747 schematics you sent me, the schematic on the top row far right is the schematic I have which shows the spliced brown/white wire going to pin D in the ALDL.
I am putting a GM TBI unit in my 1974 K10 and am using the 1227747 ECM. I'm trying to make the check engine light come on and per the ECM schematic I need 12v switched to the bulb and a brown/white...
I've already installed it.
Thx Dave.
My schematic also shows the purple wire going thru a 3 amp fuse. Is this correct?
Using a 1227747 ECM to install a TBI on my 1974 Chevy K10. While studying the ECM wiring schematic I see pin C9 with a purple wire coming from the starter solenoid called "crank signal input". Is...
I'm in Katy, Texas, right outside of Houston. If anybody is in my area please let me know on the Forum.
Anybody out there that can tweak the PROM from my 1227747 for my 1974 Chevy K10. I'll be glad to tell you everything about it an send you the PROM.
Thx Dieselsj. Do you know who I could send my PROM to, to get it tweaked. Troy Brown at Howell efi said he could do, but, if I don't have to, I'd prefer to find somebody cheaper than the 200 bucks...
Gotta question for somebody in the know about the 1227747 ECM. The wiring schematic I'm going by shows pin C2 (brown wire) going to and Air Control Solenoid. What is this, and is it needed? Thx a...
Thx Six_Shooter. I have a Jags That Run 2PRS which is similar to a VSS that Painless Performance used to sell. The 2PRS has two white wires and a tech at Painless told me that one of the white...
I have a VSS that I got from Jags That Run (2PRS) and I think it's at least similar to a VSS that Painless Performance used to sell (60115). The 2PRS has two white wires and I was told that one wire...
I am currently putting a TBI system on my 1974 K10 with a 350 and Muncie SM465 manual transmission. I am using a 1227747 GM ECM. I was told that since I'm using a manual transmission that I don't...
I have now changed my ECM to a 1227747. I was told that the 16197424, which I now have, was OBD2 as it has red and blue connectors and I want OBD1. Was also told the the 1227747 does not have...
Could you please contact me as I'd really like to talk to you. Let me know if we can talk and we'll exchange contact information. I live in Katy.
I should have said that I live in the Houston Texas area.
Does anybody know someone who has the equipment and knowledge to do this tuning?
If I need ECM tuning, can it be done thru the ALDL or will the ECM need to be removed. Too, what difference does it make what heads or cam I have and how does the ECM know?
Too, will I need to have to have my ECM reprogramed to tell it there is no automatic transmission?
So, by hooking the 2prs to F13 and grounding the other white wire, I won't need any kind of buffer?