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Author Topic: Over revving, throttle body and MPG..  (Read 1024 times)

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JamesV6CDX

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Over revving, throttle body and MPG..
« on: 05 March 2007, 20:02:59 »

On the 2.0, My engine, is slightly over-revving. At idle, when warmed up, it sits at 1100rpm (when in P or N).. and about 600rpm when in D.

When I got the car at first, I seem to recall it being lower than this.

But I've just recalled.. that it wasn't revving quite this much, before I serviced it. It's occured to me, that I did not use new gaskets on the throttle body and the ICV.. (couldn't get any at the time).. so I just used some sealent on the old gaskets.

I'm wondering if I've got an air intake leak around the TB area, causing poor MPG?
« Last Edit: 05 March 2007, 20:03:29 by JamesV6CDX »
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TheBoy

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Re: Over revving, throttle body and MPG..
« Reply #1 on: 05 March 2007, 20:04:22 »

Very possible, or anyother air leak unrelated that is getting worse...
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JamesV6CDX

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Re: Over revving, throttle body and MPG..
« Reply #2 on: 05 March 2007, 20:10:15 »

Quote
Very possible, or anyother air leak unrelated that is getting worse...

I did break off the vaccum hose that goes from the main servo/manifold thick vaccum pipe.. to the sec air injection.. but I just taped up the hole.. on the basis that it doesn't do a lot..

I think it's probably more likely the TB gaskets causing the over-rev

Might pop down in a min and read fault codes, I'm at work, but it's quiet so who cares...
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