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04-28-2020, 11:53 AM | #1 |
Drives: Yaris Sedan 2007 Join Date: Apr 2020
Location: Indonesia
Posts: 5
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HELP - Swap ECU to activate Cruise Control, Engine Shaking
My car is Toyota Vios (Yaris sedan for markets in the Asia-Pacific)
I replaced the Vios ECU (89661-ODA50) with the YARIS ECU (89661-52E90) Finally I was able to install cruise control on my car, which actually did not have an ECU that supported cruise control. I bought USDM Yaris ECU from ebay and installed it. There are several additional cables to activate CC. Features in the car function normally (air bag, door lock, alarm, ABS, etc). But there are some issues caused by differences in specifications on the emission system, and the engine shakes when idle and A / C coupling are active (RPM sometimes below 500) engine shake video There are 2 error codes: P0031 = Oxygen Sensor Heater Circuit Low Input (Bank 1, Sensor 1) After I looked at the Yaris USDM repair manual, I found different specifications in the sensor resistance and different part numbers. P0453 = Evaporative Control Pressure Sensor Circuit High Input. In my opinion this is because the Toyota Vios does not have an Evap Pressure Sensor under the car. But of all that is most disturbing is the engine shake when the A / C clutch is active. I am curious, is this normal if the RPM drops to 500 when the A / C is active and causes the engine to shake? And can it be fixed? Thanks, |
04-28-2020, 12:36 PM | #2 |
Drives: No longer own a yaris :( Join Date: Mar 2012
Location: Ashland, VA
Posts: 680
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How much have you driven the car since you installed it? When you remove power to the ECU there is a "learning" phase once it regains power where the car will run rough for a while. I normally go for a 20-30 minute drive afterwards and everything smooths out.
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I'm a hermit named Lee |
04-28-2020, 01:14 PM | #3 |
Drives: Yaris Sedan 2007 Join Date: Apr 2020
Location: Indonesia
Posts: 5
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several days. maybe around 100 miles. But showed no improvement
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04-29-2020, 02:03 PM | #4 |
2ZR swap. DO IT! Ask how!
Drives: 09 Meteoric Metallic HB Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
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Did you 100% verify pin compatibility from the OEM wiring diagrams? It's possible that the version of ECU you put in doesn't match, or is only compatible with specific production dates.
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04-29-2020, 11:28 PM | #5 | |
Drives: Yaris Sedan 2007 Join Date: Apr 2020
Location: Indonesia
Posts: 5
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Quote:
But I have matched the pin out wire of the new ECU with the old ECU. |
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