I have a Cavalier with a 3.4l ran by ms2. when i switch my car to run or right after i crank my engine dies. i took the DIS bypass Relay out and it solves everything.
I'm not quite sure to understand what the DIS Relay does. is anyone having any idea why its shutting off the engine or any explication? i've already checked my wiring.
alex
GM DIS Relay
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: GM DIS Relay
I have the same problem after I installed the DIS, it will not run with the relay, but it will run without it, which is in the Limp Home mode.
I have taken the DIS out and installing EDIS.
I changed modules, coils etc etc.
Interesting to know what you find.
I have taken the DIS out and installing EDIS.
I changed modules, coils etc etc.
Interesting to know what you find.
-
Six_Shooter
- MegaSquirt Newbie
- Posts: 18
- Joined: Wed Aug 18, 2010 6:27 pm
Re: GM DIS Relay
The relay is supposed to provide 5V on the Bypass wire (Tan/Black). This switches the ICM from running on base timing, to being adjusted by the ECM.
If you're able to run on base timing, but not while the ECM is controlling timing you have the base settings or timing table wrong.
I would suspect that you're basic settings are wrong.
The GM DIS system used on the 60 degree V6 needs an additional 60 degrees of timing advance added to the overall timing, in comparison to a dizzy equipped set-up. I'm not sure how to set this up using an MS, but had to overcome this when using code59 in a GM ECM.
If you're able to run on base timing, but not while the ECM is controlling timing you have the base settings or timing table wrong.
I would suspect that you're basic settings are wrong.
The GM DIS system used on the 60 degree V6 needs an additional 60 degrees of timing advance added to the overall timing, in comparison to a dizzy equipped set-up. I'm not sure how to set this up using an MS, but had to overcome this when using code59 in a GM ECM.