Question about Toyota Cars & Trucks
My engin#jo5d, and the turbo is just one it dose not use two no. but its a super turbo
Theres a problem with the solenoid circuit. check back from the vacuum line to find the solenoid then test your wiring and solenoid.
Posted on Mar 19, 2014
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Posted on Jan 02, 2017
SOURCE: Turbo Boost sensor A
my ford f- 350 is doing the same thing, OBDII is telling me its the Turbo Super Boost Sensor A . What the heck is that! I called Ford, they never heard of it!!!!
Anyone can help? Its a 7.3 Liter Diesel 1999 Model Ford F350 Super Duty.
Posted on Dec 25, 2009
You do not have to replace complete turbo for VAG solenoid problem, you can buy it separately, but first test you VAG unit, behind your right side head light, 2 narrow hoses at top, one narrow hose at bottom, disconnect bottom hose and block the hose with your finger to check for suction while your buddy pressing accelerator pedal a little bit, if suction there, check turbo and turbos attachments
Posted on Feb 08, 2010
SOURCE: Subaru Legacy GT CEL code 66
There is a differential pressure sensor mounted beside the 2wd fuse link with a couple of 5mm pressure lines going in each end. These lines connect to each turbo output. The two pressures acting on each side of this sensor produces a voltage read by the ecm which tells it the differential pressure between both turbo boosts during acceleration. Normally the primary turbo leads the boost and the secondary turbo plays catch up until the pressures are even then air valves get opened and shut to bring the second turbo compression in parallel with the first turbo. The two turbos simply act in sequence but function in parallel. Its just like having one big turbo but operating down two smaller paths.
The sensor measures the changing boost pressures as the second turbo rises to equal the first.
If the generated voltage is not what it expects it shows as a code 66. As you can start to see there could be many different reasons why there might be an imbalance in the two pressures.
It could be either turbo causing the imbalance or a faulty bypass valve or pressure relief valve or a number of other issues. It doesnt necessarily have to be a turbo or a solenoid which is faulty. All it means is that the pressure difference between the two boosts is wrong.
The real question is why is it wrong.
There is a lot you can do yourself to diagnose the cause. If you are able to study the manual which is available free off the internet (do a search for the link) then you will see that you can test many of the component parts quite easily at home and also temporarily replumb the turbos to bypass aspects of the system control to figure it out for yourself. To do this you will have to gain an understanding of how the twin turbo system works. However its not hard if youi strip away the complex jargon hiding simple functions.. There is a mystique of fear concerning working on these motors which is not justified.Just use common sense and logic.
Or you take it to a shop and pay someone else to do it for you.
Posted on Feb 10, 2010
the turbo boost sensor is on the intake manifold and can be replaced
Posted on Dec 13, 2010
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