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Air leak built-in on 2.0i ??
Posted by JonD (more from JonD) on Tue, 30 Nov 2004 06:38:12
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Hi All,
I'm trying to diagnose a misfire at idle, and hesitation accelerating from rest (otherwise it runs fine, good mpg) and one possibility is an air leak.
However, while loking over the inlet manifold I found that the thing seems to have an air leak built in, where the crankcase breather connects to the engine side of the throttle (the thin pipe).
This, to my mind, sort of negates the impact of a minor leak in a vacuum hose.
I pulled this small hose off, the engine ran the same. I plugged it, and the engine ran the same.
Am I missing something here? Why do they have such a large inlet to the engine side of the throttle, where it can't be measured or controlled?
My suspicion is now falling on the TPS...
Many thanks
Jon
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