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11-10-2014, 12:25 PM | #1 |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
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When to change ignition coil.
I have 2007 3dr HB. 1.5 and 150 000 kms nearly. Is mine due for a change?
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11-10-2014, 12:29 PM | #2 |
Drives: 2007 Join Date: Feb 2014
Location: motown
Posts: 339
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Are you having issues?
What do your plugs look like? Norton |
11-10-2014, 01:30 PM | #3 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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I don't think there is a set life to the coil packs. Usually the indication of them going is misfires (with known good plugs).
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11-10-2014, 04:46 PM | #4 | |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,761
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Quote:
2006 with over 230,000 kms. No issue with coils. When they start to go you will typically get a check engine light triggered by a misfire code. Sent from my iPhone using Tapatalk
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11-11-2014, 02:40 AM | #5 |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
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Well the car sometimes has extended crank before it starts (sometimes).
I did get an engine light a few weeks ago which i reset by pulling the negative terminal off and putting it on. The car can accelerate up to speed OK. But seems a bit sluggish and the mpg is down a bit. I purchased new coils and iridium NGK spark plugs. |
11-11-2014, 09:31 AM | #6 | |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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Quote:
Did you pull the code from the CEL? This would help give you a better idea if it was a specific cylinder misfiring. If you haven't changed the plugs in a long time (>80,000km) then change those and see how it runs. Chances are if it was a bad coil, it would run rough. You can tell what cylinder it is by running the engine and pulling the coil off each cylinder at one time. If the car doesn't change how it runs when a certain coil is taken off then that specific coil is likely not firing properly. Better to just pull the CEL though. The lower MPG could be a few things, I know where I'm from I've recently gone from an avg of 5.1 L/100km to 5.45 due to colder temps and change in fuel composition for the winter. Check your plugs and see how they look as well |
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11-13-2014, 04:15 AM | #7 |
Drives: 2007 Yaris Join Date: Sep 2011
Location: Canada
Posts: 22
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Coils should last a long time. Coils typically go bad when they overworked due to trying to jump too large of a gap on a burnt out spark plug, or arching past one of the rubber seals that insulate the coil from the cover/head.
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11-13-2014, 07:39 AM | #8 |
Drives: 2010 yaris 3 door hatch Join Date: Jun 2013
Location: Sheboygan Falls, Wi.
Posts: 521
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Try cleaning your maf sensor & t-body.
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11-13-2014, 11:02 AM | #9 |
Drives: 2009 yaris 2 door Join Date: Feb 2013
Location: richmond TX.
Posts: 232
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Seafoam
Seafoam the intake and you'll find out how much better it runs. It'll clear up all your emission problems.
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12-24-2014, 05:44 PM | #10 |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
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The coil pack i purchased has a code IC70684. Is this right? Here's the ebay link http://www.ebay.com.au/itm/221591158...84.m1497.l2649
I installed the NGK iridium spark plugs are they pre gap from factory? |
12-25-2014, 01:00 PM | #11 |
Drives: Scion FRS RS2, ‘21 Crosstrek Join Date: Oct 2008
Location: Chatham, Ontario, Canada
Posts: 1,729
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If the NGK plugs number ends with the suffix -11 they are pre-set to our gap. Otherwise you should confirm/adjust the gap. If I recall our gap is .43 but double check your manual.
I installed the NGK iridium spark plugs are they pre gap from factory?[/QUOTE]
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12-25-2014, 08:05 PM | #12 | |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
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Quote:
Correct me if i am wrong. But is the BKR5EIX-11 for the 1.3 Yaris and BKR5EIX is for the 1.5 ltr Yaris? what is the difference? I think i got the wrong plugs. |
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12-27-2014, 06:31 AM | #13 | |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
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Quote:
There's also one with no 11 at the end. BKR5EIX, I'm confused lol. I looked for 1nzfe engine spark plug code it's listed as BKR5EIX with no 11 at the end. |
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12-31-2014, 08:25 PM | #14 |
Drives: toyota yaris yrs Join Date: Jun 2007
Location: Sydney
Posts: 642
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Decided to change the battery it didn't really get rid of the wrrrrrrrrrrr sound and hesitation on start up.
So i changed the coil pack and behold it seems to cure it also the ride is better so far less jerk on take off and better pick up. Spark plug change to iridium BK didn't do much either except improve the mpg slightly. |
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