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ea 4.0 cfi need help 

 

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 Post subject: ea 4.0 cfi need help
Posted: Mon Feb 12, 2007 12:32 pm 
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hi there i cant stop my car from pre igniting please someone help me

Last edited by savage78 on Mon Feb 12, 2007 3:42 pm, edited 1 time in total.

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Posted: Mon Feb 12, 2007 12:41 pm 
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When you say you cant stop it, what have you tried?

 

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Posted: Mon Feb 12, 2007 12:50 pm 
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well ive done the timing on it changed the tfi over and its still wants to run when key is turned off
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Posted: Mon Feb 12, 2007 1:03 pm 
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what do you mean? that your car tries to start even when you are not turning the key? if that happens then it's probably a wiring fault somewhere.

 

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Posted: Mon Feb 12, 2007 1:05 pm 
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sorry its when you trun you key off just when you pull up and turn off it keeps truning to run
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Posted: Mon Feb 12, 2007 3:25 pm 
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Unplug your TPS(throttle position sensor) and advance the idle to compensate.

Not perfect solution but liveable.

 

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Posted: Mon Feb 12, 2007 3:31 pm 
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RuchEa wrote:
Unplug your TPS(throttle position sensor) and advance the idle to compensate.

Not perfect solution but liveable.


What is unplugging the TPS going to do?

 

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Posted: Mon Feb 12, 2007 3:48 pm 
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if your car is trying to turn over with no key in ignition, its either a faulty ignition switch or some majorly f**k starter solenoid wiring.

(if that’s i think you problem is) more info would be handy

 

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Posted: Mon Feb 12, 2007 3:50 pm 
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its preigniting when youturn you engine off and it all a bit hard to start bit like a flat battery
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Posted: Mon Feb 12, 2007 4:30 pm 
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well my car has duel fuel and when i drive in petrol for a while, and turn the car off it coughs and splutters and keeps running for about 5 seconds after i turn it off.

this is because there is carbon on the top of my pistons and it has red hot spots that keep igniting the fuel.

hope this helps a little.

 

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Posted: Mon Feb 12, 2007 6:57 pm 
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alfy wrote:
well my car has duel fuel and when i drive in petrol for a while, and turn the car off it coughs and splutters and keeps running for about 5 seconds after i turn it off.

this is because there is carbon on the top of my pistons and it has red hot spots that keep igniting the fuel.

hope this helps a little.


s**t thats nasty :o Whats your oil pressure like when this happens??

 

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Posted: Mon Feb 12, 2007 7:28 pm 
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one way to get ridof the hot spots is to get the engine up to temperature. then pull the lid off the air cleaner. then bring the revs up to about 2000. slowly pour a schooner glass of water down the throttle body. do it slowly and stop if the engine starts to die. this will shift 90 per cent of the deposits on the head/piston crowns.

 

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Posted: Mon Feb 12, 2007 11:07 pm 
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fordzatmyplace wrote:
alfy wrote:
well my car has duel fuel and when i drive in petrol for a while, and turn the car off it coughs and splutters and keeps running for about 5 seconds after i turn it off.

this is because there is carbon on the top of my pistons and it has red hot spots that keep igniting the fuel.

hope this helps a little.


s**t thats nasty :o Whats your oil pressure like when this happens??


i have no idea lol, but the saying "since it started doing it my motor has half shat itself" seems to sum it up nicely :P

 

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Posted: Tue Feb 13, 2007 9:04 am 
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well guys thanks for most of the help i think i might have stoped it from doing it just moved the distrubutor towards the front of the motor see how it go today in the heat when i pick my kids up from school :)
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