Testing the ECU on the car W/O injectors hooked up?
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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).
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.
Testing the ECU on the car W/O injectors hooked up?
I'm doing the install in steps. I've got the wiring and mounting done but I still have the carbs on so I have not installed the throttle bodies or O2 sensors because I wan to keep the car down time as little as possible. I'm doing initial testing. I have checked the temp sensors and calibrated the TPS but have not started the car with the ECU powered on. I want to check to see if I get tach signal from the coil. Is there any danger in starting the car W/O the injectors connected? Should I put a load on the injector leads or something? I am using an older Allison Electronic ignition module for spark for now.
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DonTZ125
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Re: Testing the ECU on the car W/O injectors hooked up?
The injector drivers ground out the coils; they don't provide power. If the injectors aren't connected, no current flows = no power = no problem.
Re: Testing the ECU on the car W/O injectors hooked up?
Thanks I figured that but never assume anything.