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idle speed roughness , sorted out at long last. 

 

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 Post subject: idle speed roughness , sorted out at long last.
Posted: Thu Aug 25, 2005 7:02 pm 
Parts Gopher
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Hi to all,
As you may have worked out with my past posts.
Ive been working on the vehicle for many hours and days.

To all you guys who experience , running rough at idle, and good at all other speeds , with the occcasional miss at road speed.
The problem has been nailed at long last.
The crank angle sensor that is mounted on the front of the timing cover was covered in soot.

Removed it from the vehicle and the eye was also covered.
I used some carby cleaner and some rags and got it squeky clean.

Reinstalled it and now runs as smooth as a clock.

Do try this as it is almost always overlooked .
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Posted: Thu Aug 25, 2005 7:11 pm 
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That's a great, simple solution. If i had a dollar for every 6cylinder rough idle thread that was posted....

Some good work there.

 

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Posted: Thu Aug 25, 2005 7:12 pm 
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how do i get to the crank angle sensor?

is it a big job and where is it?

 

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Posted: Thu Aug 25, 2005 7:15 pm 
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Should be on the front of the engine, reads the teeth on the back of the harmonic balancer IIRC

I assume EF/AU only for this remedy...

 

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Posted: Thu Aug 25, 2005 7:18 pm 
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can anyone get a pic as i dont know where this is
anyone have one handy?

 

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Posted: Thu Aug 25, 2005 7:54 pm 
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anyone?

 

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Posted: Thu Aug 25, 2005 8:20 pm 
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Quote:
how do i get to the crank angle sensor?

is it a big job and where is it?


If you haven't got one I can sell you one...... Just Kidding....

 

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Posted: Thu Aug 25, 2005 10:02 pm 
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To obs35n .

The sensor is on the timing cover, exactly above the harmonic balancer , in the middle.

It has 2 wires attached to it, undo the plug and get a 7 mil socket and ratchet and undo 2 bolts.

remove the sensor clean it, and then reinstall it.


hope that helps.
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Posted: Thu Aug 25, 2005 10:26 pm 
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is that the one on the top of the throttle body?

 

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Posted: Thu Aug 25, 2005 10:39 pm 
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John, Only EF and AU's have this sensor.

 

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Posted: Thu Aug 25, 2005 11:02 pm 
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Yep thats correct, ef and au .

The car i worked on is an ef falcon.
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Posted: Thu Aug 25, 2005 11:11 pm 
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To ob again.

Nah not the throttle body.


the crankshaft harmonic balancer.

hope this helps mate.
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Posted: Fri Aug 26, 2005 12:03 am 
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Can someone take pics of where and what to remove? YOu know me, I need that kind of thing, lol.

 

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Posted: Fri Aug 26, 2005 4:34 am 
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as promised OBS35N :D

well not exactly.. net wasnt working when i got home from uni.. so i had to do it after work.. yes its 12:30am

yes the image is half a meg, no i couldnt be bothered resising it, so now u have a very large image :D

 

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Posted: Fri Aug 26, 2005 11:20 am 
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cheers mate this will be very useful

*wonders if the guys that rebuilt my engine put a new sensor in?*

 

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