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Code P0302 is a misfire code on cylinder 2 which can be caused by a variety of reasons. The simplest is usually the spark finding a way to ground other than jumping the normal gap inside the cylinder, causing the needed combuston. On one Toyota that had this code (a Sienna Van) the problem was a very visible carbon line on the spark plug surface, which, when swapped for a new one and the igniter cleaned, solved the problem. Also, try swapping igniter coils around, or plugs, replacing spark plug leads if you have them. Other possible causes are blocked / defective injectors of course, or bad valves. You must clear the codes in between Tests too, of course. If the cylinder number changes at random, then possibly fuel contamination or fuel pressure / regulator may be to blame. Other possibles are always computer and/harness connectors of course. Hope this helps. Examine the parts carefully - sparks often leave tell tale signs. Also check http://www.findonefindall.com/toyota-sienna/siennamisfirecodesfix.htm for pictures of this fix.
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How do you turn off check engine light ' 07 Toyota corolla?
you pee on it
How do you turn off the check engine light 1999 Toyota corolla?
disconnect battery for 1 min
Check engine light on 2007 Toyota corolla?
i have a 2007 carolla that has been fully services and the check engine light is still on. there is nothing wrong with it.. How do I get it off?
What cause Toyota corolla 1998 engine check light come on?
The ECU has detected a problem with the emissions system. Most auto parts stores will scan the ECU for free.
Flashing vsc light on toyota corolla came on along with check engine light?
If the VSC flashing light comes on at the same time on your Toyota Corolla, then there might be a sensor issue, and if you have a warranty, have it back to the manufacturer.
How do you reset the check engine light on a 2007 Toyota Corolla?
Try unhooking your battery cables for a few minutes. That usually works for me.
What turns on the check engine light on a 2005 toyota corolla?
I did not tighten the gas cap good....Sounds crazy but i have that several times...
What is the average mpg for 1998 Toyota corolla LE?
check this out for the details http://www.usedcarexpert.co.uk/stats/Toyota/Corolla/1997-2000
What would cause engine surges and engine knock on 2005 Toyota Corolla?
Could be many reasons. If there is an check engine light, have the code pulled with a ODB2 scanner from any local garage. Reference that code with what it means and you have a better idea where to look to solve the problem.
How you could check the Chassis Number of Toyota Corolla?
how cheak the chassis number of "corolla altis"
Are 2006 Toyota Corolla being recalled?
No, but check with a Toyota dealer to make sure.
Why car shaking Toyota Corolla?
The Corolla could be shaking for many reasons. Start by checking the wheel bearings and brakes for wear. Then check the engine to see if it running rough, causing the shake.
