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My Rx 300 Jerks When On Top Speed After I Changed My Brain Box - Car Talk - Nairaland

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My Rx 300 Jerks When On Top Speed After I Changed My Brain Box by sammie4oji: 8:23am On Oct 28, 2016
please help, can brain box affect the gear selection of a lexus jeep rx 300 2000model 4wheel drive? this started when i changed my brain box.
though my rewire scanned it and told me its the gear and when we took it to a gear specialist, he said there is nothing wrong with the gear that the brain box is not yet compatible with the jeep .
the jerking is only felt when am on top speed for the car moves very well.
it was never like this until now after the brain box was stolen.
Re: My Rx 300 Jerks When On Top Speed After I Changed My Brain Box by mayor2013: 9:13am On Oct 28, 2016
sammie4oji:
please help, can brain box affect the gear selection of a lexus jeep rx 300 2000model 4wheel drive? this started when i changed my brain box.
though my rewire scanned it and told me its the gear and when we took it to a gear specialist, he said there is nothing wrong with the gear that the brain box is not yet compatible with the jeep .
the jerking is only felt when am on top speed for the car moves very well.
it was never like this until now after the brain box was stolen.


Why did you change your previous ECU? If you had scan the car. Post the scan result(s) here. If you need a solution and you are in lagos call multi autolab on 08156087872 or 08165520837
Re: My Rx 300 Jerks When On Top Speed After I Changed My Brain Box by sammie4oji: 9:53am On Oct 28, 2016
The car was vanderlised and the ECU was stollen. the jerking was noticed after i got the new (tokunbo) ECU.
Re: My Rx 300 Jerks When On Top Speed After I Changed My Brain Box by pek(m): 11:49am On Oct 28, 2016
Post or send me the VIN of the car and the part number of the brainbox let me cross check.
Re: My Rx 300 Jerks When On Top Speed After I Changed My Brain Box by chillex8(m): 8:41am On Oct 29, 2016
sammie4oji:
The car was vanderlised and the ECU was stollen. the jerking was noticed after i got the new (tokunbo) ECU.

Your issue is simple.

Car was working fine before ECU was stolen.
Car is misbehaving after a new ECU was installed.

Do you still need answers

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Re: My Rx 300 Jerks When On Top Speed After I Changed My Brain Box by stephcruse(m): 7:59pm On Oct 30, 2016
You need to check your car fuel pressure ,spark line but I will still suggest you scan the vehicle . You can also call 08038042709 and 08023284076 for more info

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