I am at step #69 and I am not clear on the difference between the "standard flyback" circuit and " PWM flyback" circuit. Are they saying that PWM flyback will operate both low and high impedance injectors and Standard flyback will only operate high impedance? Which circuit offers the most choices of injectors?
I am building a '70s (2) cylinder engine.
flyback circuit
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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.
flyback circuit
1970 Honda N600 600cc Twin
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kjones6039
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Re: flyback circuit
As you pointed out in your post, the PWM is necessary only if you will be using low-z injectors.Which circuit offers the most choices of injectors?
I am building a '70s (2) cylinder engine.
To answer your question more directly, you will have more choices (hi-z or low-z) by installing the PWM flyback. If you have no intention to use low impedance injectors you will not need the PWM circuit.
On the other hand, it will hurt nothing, if you build the circuit anyway.
Hope that helps...........
Ken
1979 Corvette - 383 CID SBC w/ Holley Pro-Jection 900 CFM TBI, 4-85 lb lo-z injectors & Walbro 255 pump
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