Hello,
As I am completing the wiring on my MS II, I came across something that did not seem to make too much sense to me.
Background info: 4.3 TBI used in Suzuki Samurai with TH350.
I noticed in the wiring diagram the +5V ref wire for the TPS also goes to the hall sensor.
Question 1) Both the hall sensor and TPS are supposed to connect to this wire in my harness?
Question 2) I have a GM 4.3 TBI which uses a VR distributor, then an 8 pin connector which converts the signal to the square wave, I wired the circuit in MS II for the hall/optical circuit. Do I hook this wire up as it is in the diagram for the hall or the VR?
Question 3) Also I am not exactly sure what it means when the diagram depicts the wire looping around another wire?
I would appreciate any info as always. Thank you so much
Will
Wiring TPS +5V ref wire
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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.
Re: Wiring TPS +5V ref wire
1) The 5v to the hall sensor and TPS is merely a power supply. Neither take much current, so sharing the same circuit is OK. Just how you wire them to the same supply depends on their layout - it doesn't really matter.
2) A VR sensor produces an approx sine wave, which is quite tricky to convert to digits the processor can read. But since you have a square wave output from your dizzy, either the opto or VR input will be fine. It's convention these days to use the VR input for the engine tach signal - leaving the opto for the much simpler cam signal if needed later.
3) That wire loop usually represents a screen (shield)
2) A VR sensor produces an approx sine wave, which is quite tricky to convert to digits the processor can read. But since you have a square wave output from your dizzy, either the opto or VR input will be fine. It's convention these days to use the VR input for the engine tach signal - leaving the opto for the much simpler cam signal if needed later.
3) That wire loop usually represents a screen (shield)
Dave P, London UK.
Rover V-8
MSII V3
EDIS
Tech Edge Wideband
Rover V-8
MSII V3
EDIS
Tech Edge Wideband