2009 Ford Fiesta 1.4
Ignition coil

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Ntombi Seshoka
Driver
1 points

Problem added: Dec 18, 2020 (1 month ago)
Hi i have bought a new coil ignition but the engine light keeps coming back , is it because I didn't change the ignition wires please help i driving 2009 ford fiesta 1.4

Car details
Car: Ford Fiesta
Variant: 1.4
Model Year: 2009
Replies and Fixes
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whittingehame
Legend
16,738 points

Dec 18, 2020 (1 month ago)
I dont know why you had to replace the ignition coil in the first place , was it faulty ? Ignition lead/s are usually more common to fail than the coil and causing misfire , running rough .
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Ntombi Seshoka
Driver
1 points

Dec 18, 2020 (1 month ago)
when they where diagnosing the car it was showing oxygen sensor and coil ignition , so the mechanic told me to replace it . I did replace both and the light was gone for few days and came back again and when am driving it sometimes looses power or shakes a bit .
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Derbyshire
Top Fixer
243 points

Dec 18, 2020 (1 month ago)
When were the spark plugs last changed ? As Whittingham has advised ignition leads would be the first call after spark plugs.
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whittingehame
Legend
16,738 points

Dec 18, 2020 (1 month ago)
If the light is back on there should be a stored fault code that will show when scanned . Impossible to really give you a definitive answer from here , could be a plug lead breaking down under load , plugs needing replaced , MAF needing cleaned / replaced .
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Ntombi Seshoka
Driver
1 points

Dec 18, 2020 (1 month ago)
Thank you very much I will have to check the ignition lead because I don't think it's the spark plugs , I have serviced a car first week of November .
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whittingehame
Legend
16,738 points

Dec 18, 2020 (1 month ago)
If there are no visible signs of the plug leads being faulty you need to check with a multimeter (or ohmmeter) to see if they are in specs .
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Ntombi Seshoka
Driver
1 points

Dec 18, 2020 (1 month ago)
I will do that thank you.
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Ntombi Seshoka
Driver
1 points

Dec 18, 2020 (1 month ago)
1 more question what will be the cause that makes spark plugs to crack ?
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whittingehame
Legend
16,738 points

Dec 18, 2020 (1 month ago)
If the porcelain is cracked the most common reason is fitting incorrectly or with the wrong plug socket . If cracked , they usually short and cause misfire , lack of power .
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