Posted 24 August 2009 - 03:27 PM
Driving up the M1 the other day my car startted to misfire and the engine warning light came on. I have had the same issue at the start of the year and replaced the plugs and coil pack which fixed the problem untill the other day. I decided to try changing the coil pack again which didn't fix the problem. So I thought I'd try to change the plugs. On the way to buy some plugs the EAC fail came on. I have had this problem before just after i brought the car 6 years ago. I took it back to ford and they said they replaced the Throttle housing.
Does anyone have any ideas what the possible casue of this problem can be. I've just ordered a pc based diagnostics system and hopefully this will shed some light on any error codes. I'm quite prepared to have a go at most things my self if it will save me some money.
Anyone have any ideas on what the potential problem is here? anyone else had a similar problem?
Any help on this would be very much appreiated.
I have a Fiesta Zetec 1.4l 53 plate.
Posted 25 August 2009 - 10:49 AM
Posted 26 August 2009 - 12:49 PM
I checked the air filter and that seems fine. It looks hardly used and it has been in for four months now so I don't think that had anything to do with the problem.
The only thing is the car does not seem to accelerate as powerfully as it used to. could it be because the engine has been misfireing that the engine management has altered to suit the misfire and will take time to adjust back to the car running normally?
any help at all on any of this would be really helpfull here guys.
Posted 01 September 2009 - 11:45 PM
Posted 02 September 2009 - 12:04 AM
Did you check the HT leads? When you keep replacing the spark plugs are you sure your not temporarily, accidently fixing the HT lead connection which becomes loose later on, causing a missfire?
My mates Fiesta was misfiring and would start up really lumpy, they replaced the rotary part of the distributor and all is good now.
Sorry if none of this helped. Im a half n00b when it comes to Engines
Posted 13 September 2009 - 03:24 PM
I have not had an EAC fail message since I have changed the plugs. I have added redex to the fuel to hopefully clean the sensors etc. I have only put one lot through so far but I will put another lot through when I have to fill up again which should be some time this week.
I replaced the plugs (NGKs) with Bosch super 4s. They were twice the price of NGKs but I think that they should last longer and having 4 electordes to spark to should also mean that I get better fuel economy and better performance.
I'll try and keep you all posted with how things go.
Posted 22 September 2011 - 07:45 AM
Posted 10 January 2012 - 03:49 AM
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