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Post by bothwellbuyer on Jan 3, 2023 3:02:35 GMT
Just to mention that I got my ecu returned from ecutesting. A bit of delay and a bit of a fiasco with DHL. I installed the ecu fairly easily, then followed their instructions of starting the car; letting it warm up to operating temperature; then taking it for short runs, stopping then starting off with a light throttle and number of times over 30 minutes. The local industrial estate came in handy.
the outcome is the car is much much smoother. A dream in fact. As said, its a 2002 car, imported in 2004 from wherever so I had no history. ECUtesting said the ecu was faulty and as it wasn't opened up, I assume they sorted the software. It now accelerates more smoothly, and changes gear smoothly and more often than before as it seemed to stick in gear. So a good return on the £259 paid. I will let them know.
Indeed, its now smoother than the 2006 multi-hinge car, so I am wondering if that needs a check !
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Post by firemac on Jan 3, 2023 7:40:21 GMT
Glad it’s sorted, Ian. From my own experience and what I’ve read over the years, ECUtesting are a great outfit. 👍😊
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Post by charliefarlie on Jan 3, 2023 10:24:12 GMT
I hear there are some companies claiming they can re map the Denso ECUs on the 2006 on cars. Not that I’m considering it though. 👍
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Post by Paulus17 on Jan 4, 2023 10:33:00 GMT
Glad to hear all is ok now Bothy :TU:
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Post by philip42h on Jan 4, 2023 10:37:29 GMT
Do we know why that particular ECU needs reflashing? Is it because: - It forgets?
- The gearbox changes with wear and the ECU needs now to learn the new characteristics?
- Something else?
And how do they know that it is "faulty"?
Just curious ...  |
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Post by firemac on Jan 4, 2023 11:54:19 GMT
Do we know why that particular ECU needs reflashing? Is it because: - It forgets?
- The gearbox changes with wear and the ECU needs now to learn the new characteristics?
- Something else?
And how do they know that it is "faulty"?
Just curious ... From what I’ve read over the years, this early gearbox ECU had a software glitch that caused the harshness/random gear changing/pogo-ing symptoms which occurred in most, but not all, of the pre-03 cars once they got to 80K miles or so. Firms like ECUtesting read the software and if it has the glitch, they load the revised program. This is what Toyota did with the facelifted 4.2.5’s ECU, spurred on by legal action by RAV owners in the US. Toyota USA did a "recall" (which wasn't a factory recall rather by the importer and limited to cars that had full Toyota service history, etc) and reflashed the ECU at their own expense but not in Europe (nor anywhere else AFAIK) - the power of class action litigation, eh? 😕 The gearbox has fuzzy logic which learns the driver’s characteristics; whether this was part of the initial software problem or not, I don’t know. In any event it was fortunate that Toyota fitted the ECU separate behind the dashboard making it simple to remove and repair. Many autoboxes have integral ECUs which can make any reflashing costly or even uneconomic. |
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