I'm now currently building a Toyota with 4AGE 16V in it. previously the owner using stock ECU and runs a turbo in it.
I've made a connected between the stock harness to MS2 V3 board. I tried to crank it but no RPM signals was registered. I'm connecting the RPM thru the "NE" signal from the stock harness. any one have experience with stock Toyota 4AGE 16V ignition wiring?
Toyota 4AGE-VAST RPM input
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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). 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.
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Matt Cramer
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Re: Toyota 4AGE-VAST RPM input
Did you use a pull-up resistor on it? There's a guide to VAST here:
http://www.megamanual.com/ms2/vast.htm
http://www.megamanual.com/ms2/vast.htm
Re: Toyota 4AGE-VAST RPM input
my MS2 previously was getting signal from a "ignitor conditioner" and i've bypass D1 and D2. now should i still keep the bypass of D1 and D2 and run a 1Kohm to D9 as per instruction?
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Matt Cramer
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Re: Toyota 4AGE-VAST RPM input
You got it.
Re: Toyota 4AGE-VAST RPM input
i've checked the wiring and i found out that the signal from distributor does not goes to the ignitor, it was fed directly to 4AGE ECU "Ne" pin. this meaning that the "Ne" signal is not a 12V square pulse as per MegaManual VAST instruction. Could it be?
the car runs fine with stock ECU that this lead me into doubt how the wire-man does the job previously.
the car runs fine with stock ECU that this lead me into doubt how the wire-man does the job previously.
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Matt Cramer
- Super Squirter
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Re: Toyota 4AGE-VAST RPM input
There were several ignitions used on 4AGEs; the VAST ones had the distributor signal wired to the ignitor. There was another design called ESA that wired the distributor signal straight to the ECU. An ESA system will have a 24 tooth wheel in the distributor while a VAST system will have a 4 tooth. Which distributor do you have?