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Erractic idle and pinging 

 

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 Post subject: Erractic idle and pinging
Posted: Wed Mar 05, 2008 1:01 pm 
Hi fellow ford fans. Just bought myself an EF series 2. 5Ltr auto. only problem is an erratic idle. Tacho goes from 400 to 700 RPM up and down constantly. Sounds like a real lumpy cam but im sure it dont have one . Also when powering on, she pings a bit. Any help greatly appreciated.
Thanks heaps
Dazza
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Posted: Wed Mar 05, 2008 2:39 pm 
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Hunting idle can be many many things. Air leak in intake can do it - can also contribute to the pinging.

Personally i'd be looking for loose hoses or any other air leak around the intake system (i.e. after the MAF sensor).

 

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Posted: Wed Mar 05, 2008 4:28 pm 
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Maybe it does have a cam and you have to use premium fuel???

 

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Posted: Wed Mar 05, 2008 6:11 pm 
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hi
i would say possably a tps.(throttle position switch)
i had a similar issue with my eb v8 ...
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Posted: Thu Mar 06, 2008 11:35 am 
{USERNAME} wrote:
Hunting idle can be many many things. Air leak in intake can do it - can also contribute to the pinging.

Personally i'd be looking for loose hoses or any other air leak around the intake system (i.e. after the MAF sensor).


Thanks dude - problem solved. It was the little clips on the top of the air filter box. Had to bend them a bit more to make them shut tighter and also tightned all hoses too. Thanks heaps fellas
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Posted: Thu Mar 06, 2008 11:51 am 
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{USERNAME} wrote:
{USERNAME} wrote:
Hunting idle can be many many things. Air leak in intake can do it - can also contribute to the pinging.

Personally i'd be looking for loose hoses or any other air leak around the intake system (i.e. after the MAF sensor).


Thanks dude - problem solved. It was the little clips on the top of the air filter box. Had to bend them a bit more to make them shut tighter and also tightned all hoses too. Thanks heaps fellas


you sure it was the airbox lid? any air getting in through the lid will still pass through the maf and be metered so that shouldnt cause a problem. when you were playing with it did you happen to move the extra piece of intake pipe that bends over the strut tower? if that clamp has been done up to tight it will squash it out of shape and cause an air leak.

 

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Posted: Thu Mar 06, 2008 3:46 pm 
{USERNAME} wrote:
{USERNAME} wrote:
{USERNAME} wrote:
Hunting idle can be many many things. Air leak in intake can do it - can also contribute to the pinging.

Personally i'd be looking for loose hoses or any other air leak around the intake system (i.e. after the MAF sensor).


Thanks dude - problem solved. It was the little clips on the top of the air filter box. Had to bend them a bit more to make them shut tighter and also tightned all hoses too. Thanks heaps fellas


you sure it was the airbox lid? any air getting in through the lid will still pass through the maf and be metered so that shouldnt cause a problem. when you were playing with it did you happen to move the extra piece of intake pipe that bends over the strut tower? if that clamp has been done up to tight it will squash it out of shape and cause an air leak.


Not sure mate but whatever i did has fixed the problem anyway. might only be a short term fix though but i will report back if it happens again.
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