Quote:
Originally Posted by Erroneous
I hate to bump this thread, but I was hoping some of the gearheads here would be able to help out with a question I have.
I had the valve springs replaced at a Toyota service center and about 10,000 miles later, the car started heaving and cutting off randomly. Made my way to a different Toyota service center and they ran diagnostics and they told me the direct injector ECU was not bolted correctly and that was causing intermittent connection.
No one has touched my engine in any significant way other than the factory and the recall service center. But the original service center said they wouldn't have removed the ECU.
Is it true that the valve spring replacement was unlikely to be the culprit? Should I be otherwise concerned about issues moving forward and, if so, what should I look out for? Thanks for any input.
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The DI ECU and the ECU are 2 different computers. The DI ECU definitely gets removed because it’s mounted to the steel fuel rail shield over the head. Can’t take the valve covers off without removing that. A DI ECU rattling loose will wreak havoc on how the car runs, so it’s certainly a likely candidate.
That said if the service was 10k miles ago, it would be very strange for you to only see symptoms now. Most failures occurred between a few hundred to ~3000 miles. At 10k you’re likely in the clear.