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How the 4A-GE ECU works
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03-04-2007, 12:22 AM
Post: #71
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How the 4A-GE ECU works
Sorry, too lazy to read all post, but isn't just built in processor in stock ECU.
Very easy to built in megasquirt processor in ECU... Best regards Finn |
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03-09-2007, 01:50 AM
Post: #72
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How the 4A-GE ECU works
JMR: Am i right ?.
Finn |
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03-09-2007, 08:43 PM
Post: #73
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How the 4A-GE ECU works
Toyota T23 Wrote:JMR: Am i right ?. About the ECU MCU or the Megasquirt?  The stock ECU uses a MCU with built in mask programmed ROM. To make it tuneable requires additional hardware that runs the stock ROM in external memory. I don't know enough about the MS to answer your second point. |
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03-10-2007, 01:35 AM
Post: #74
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How the 4A-GE ECU works
To make it tuneable requires additional hardware that runs the stock ROM in external memory
Thought so.. Thanks Finn |
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03-11-2007, 03:48 AM
Post: #75
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How the 4A-GE ECU works
"Isn't the W terminal supposed to light up the LED on the cluster, the Check Engine Light itself?"
LED ON THE CLUSTER??? I don't know what they shipped to the EU, but in 1985/6/7, I don't think Toyota shipped a single LED in any part of any one of the AE8x cars in the US. Them's 12-volt incandescent LIGHT BULBS in the instrument cluster, just like every other illuminated object in the car. (Except the blue dashboard clock.<G> 
Original owner, 1985 Toyota Corolla GT-S in the US of A. Will trade for a Cadillac-Gage V150 or a Ford GT44. |
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03-26-2007, 01:43 PM
Post: #76
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How the 4A-GE ECU works
i have a ECU AW11 i want to know what chip or model or type of eprom have the ecu installed and what chip or eprom on the ecu have the configuration, map or setup for reprogrammer?
What Type of Eprom programmer i have to buy ? Tnks |
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03-27-2007, 07:48 AM
Post: #77
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How the 4A-GE ECU works
Yeah, Red, you're probably right, but for the purposes of the experiment it didn't really make a difference what the lighsource was specifically. In case people need info - it worked with the battery positive, through a 1kO resistor and a LED, attached with cathode to W.
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07-26-2007, 03:41 PM
Post: #78
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How the 4A-GE ECU works
+subscribes
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07-27-2008, 07:46 PM
Post: #79
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How the 4A-GE ECU works
Hy
its possible to get the informations again. the links from the year 2006 didnt work any more. thx for your help. Br, stefan |
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07-27-2008, 10:56 PM
Post: #80
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How the 4A-GE ECU works
Unfortunately not: I did find later parts (part 5 and 6 I thought) but these parts have disappeared.
 I did even try http://www.archive.org but no success and besides that: you will miss the images then. 
1983 - AE86 Sprinter Trueno - import project 2013 - Honda Civic sport - daily driver 2004 - AEU86 dot ORG - daily domain Support our forum, buy from the AEU86 shop: ![[Image: AEU86 AE86 - How the 4A-GE ECU works]](https://www.aeu86.org/sticker-banner-468.gif "AEU86 AE86 - How the 4A-GE ECU works")
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