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The mkiv Supra Owners Club

help with bov?


magnos

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Cons:

If you have a UK car, an atmospheric BOV can confuse the ECU because they use a MAF airflow sensor which is ahead of the BOV. This sensor registers that a certain amount of air is flowing in, so the ECU reacts accordingly by supplying the correct amount of fuel. That air then gets vented by the BOV, so the engine runs very rich. This creates two problems – one, the car may stall if the throttle doesn’t come back on, two, if the throttle does come back on the ECU is trying to compensate for an over-richness and may lean the mix off to undesirable levels, potentially causing detonation.

The j spec cars have a manifold pressure sensor and don't suffer from this problem.

 

after reeding this....makes me think 2 before buying ...

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