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08-29-2018, 02:40 PM | #1 |
Drives: 09 Toyota yaris Join Date: Aug 2018
Location: Nc
Posts: 11
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Throttle issues
Ok so I got an 09 yaris with some throttle issue. The car runs fine while idle and revs fine to till I start to move. When I try driving it will go but has trouble accelerating, check engine light flashes when I get up to speed. Any ideas
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08-29-2018, 02:45 PM | #2 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,761
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Get it checked for stored codes. Without doing so, all you'll be getting is guessing game advice.
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08-29-2018, 02:49 PM | #3 |
Drives: 09 Toyota yaris Join Date: Aug 2018
Location: Nc
Posts: 11
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I did that and it told me cylinder 3 and 4 were misfiring, I've already replaced spark plugs. Car ran a lil smoother but the check engine light still there and acceleration problems still there. I will have my friend come over later to check the light again.
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08-29-2018, 02:50 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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Fault coil packs. Spark plugs are not usually the cause of misfires. Coils are.
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08-29-2018, 02:53 PM | #5 |
Drives: 09 Toyota yaris Join Date: Aug 2018
Location: Nc
Posts: 11
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Ok after I hook computer up to it if it still says misfire I'll replace the coils
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08-29-2018, 02:57 PM | #6 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,761
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You can verify by changing the position of the coils. Swap cylinders 1 and 2 for 3 and 4. If the coils are faulty the codes will follow the bad ones.
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08-29-2018, 02:57 PM | #7 |
Drives: 09 Toyota yaris Join Date: Aug 2018
Location: Nc
Posts: 11
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Ok thanks I'll let ya know wut happens lol
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09-03-2018, 11:01 AM | #8 |
Drives: 09 Toyota yaris Join Date: Aug 2018
Location: Nc
Posts: 11
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Ok so I hooked up to the computer and got p0300, p0301, p0302, p0303, p0304, and p0172. I know what they all mean any easy fix. All cylinders misfire and random misfire and it's running rich
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09-04-2018, 08:12 AM | #9 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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what are your fuel trims reading?
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09-04-2018, 02:05 PM | #10 |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,761
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Did you clear the codes before swapping the coils around?
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09-06-2018, 05:15 PM | #11 |
Drives: 09 Toyota yaris Join Date: Aug 2018
Location: Nc
Posts: 11
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Idk about fuel trim and I did not swap cause now it's saying misfire on all 4 cylinders
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09-06-2018, 05:16 PM | #12 |
Drives: 09 Toyota yaris Join Date: Aug 2018
Location: Nc
Posts: 11
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Should I still try swapping
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