Throttle body air supplies

8v section views (approx)

old 8v

old 8v

shown here , to solve an air leak from this source. It must not leak air. or the engine will scream at idle on 8v, and 16v cold or go lean on 16v hot. block the pipe to test your theory here, this pipe, can be blocked, but dont drive without brake assist booster.

The 1.8L DOHC , the TPS is set to 0.5vdc ,to tell ECU , IM at IDLE now. Same with 2.0L

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