2008 Yaris Misfire Code After New Plugs - Toyota Nation Forum : Toyota Car and Truck Forums
Yaris/Scion iA, Vitz and Echo Forum Discussion area for all the Toyota Yaris/Scion iA, Echo, and Vitz owners worldwide.

 
LinkBack Thread Tools Display Modes
post #1 of 3 Old 06-14-2019, 07:34 PM Thread Starter
Official TN Member
 
Join Date: Aug 2012
Location: MD
Posts: 187
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Thanks: 24
Thanked 18 Times in 17 Posts
iTrader Score: 0 reviews
(Thread Starter)
2008 Yaris Misfire Code After New Plugs

Hi everyone,

the car is a 2008 Toyota Yaris with 155k miles.

The car is throwing misfire codes P0300/P0301/P0303/P0304. It has a rough idle. The spark plugs and coils were recently changed, so I'm wondering, what could be causing this issue? Maybe EGR valve? But wouldn't that cause other EGR related codes?

1994 Camry Coupe LE V6 79k mi
riva2model64 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 06-29-2019, 08:19 AM
New TN User
 
Join Date: Apr 2019
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Hi I've had same problem Toyota do not like aftermarket products. changed my plugs with those from autozone and kept misfiring come to find out these stores no longer carry the exact OEM product that goes on the car. They are all after market. So I went to Toyota got plugs and no more misfire. I know sometimes autozone is cheaper than the actual Toyota car place but the computer doesn't like it and will give problems with some aftermarket products.
EDDIE jackson is offline  
post #3 of 3 Old 07-12-2019, 06:31 PM
New TN User
 
Join Date: Jul 2019
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
go for ngk. those are always good.
rustbucketz31 is offline  
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Passenger and Sports Car Forums > Yaris/Scion iA, Vitz and Echo Forum

Bookmarks

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome