P0301 Code every day
#1
P0301 Code every day
So I have this up on another forum but would love some input from the gurus over here.
Currently I'm on a E85 tune (for about a year now), but about a month ago I started getting this P0301 code every time I cold start the car. The code pops up after a minute or two of idling.
So here's what I tried so far and I'm still getting this error....
Replaced:
Front O2 sensor
spark plugs (NGK Iridium)
coils\wires
Moved the injectors around (swapped 1 with 3)
added fuel at cold start
checked for boost leaks
But for some reason I still get this stupid error when starting the car after it's been sitting all day or over night. Within the first 3 minutes of starting the car, it's there. I'm seriously considering throwing the stock flash on there and running pump gas to see if it clears up. Not sure what else it could be???
When cruising or WOT there is no issues at all, car hit's AFR's exactly where they should be, and drives great. But at idle it pops and misses intermittently, and the AFR's tend to wander a bit but always return to stoich within about 10 seconds after letting off the gas.
Any chance it could be the EGR or idle switch or some other weird sensor? Also, someone mentioned turning off the O2 feedback at idle - does anyone have instructions or more info on doing this? Where are the settings for this? Also, where do I turn off the misfire code? I have a Tactrix cable now so I can poke around and do this myself with a little help.
Thanks everyone
BTW, mods are in my signature, this is for a 2006 Evo IX 5 speed.
Currently I'm on a E85 tune (for about a year now), but about a month ago I started getting this P0301 code every time I cold start the car. The code pops up after a minute or two of idling.
So here's what I tried so far and I'm still getting this error....
Replaced:
Front O2 sensor
spark plugs (NGK Iridium)
coils\wires
Moved the injectors around (swapped 1 with 3)
added fuel at cold start
checked for boost leaks
But for some reason I still get this stupid error when starting the car after it's been sitting all day or over night. Within the first 3 minutes of starting the car, it's there. I'm seriously considering throwing the stock flash on there and running pump gas to see if it clears up. Not sure what else it could be???
When cruising or WOT there is no issues at all, car hit's AFR's exactly where they should be, and drives great. But at idle it pops and misses intermittently, and the AFR's tend to wander a bit but always return to stoich within about 10 seconds after letting off the gas.
Any chance it could be the EGR or idle switch or some other weird sensor? Also, someone mentioned turning off the O2 feedback at idle - does anyone have instructions or more info on doing this? Where are the settings for this? Also, where do I turn off the misfire code? I have a Tactrix cable now so I can poke around and do this myself with a little help.
Thanks everyone
BTW, mods are in my signature, this is for a 2006 Evo IX 5 speed.
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#9
for the hell of it, check your vacuum lines going from throttle body and egr valve to the egr solenoid. Also make sure one of the plastic nipples on the egr solenoid isnt cracked or broken.
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