#1: cold missfire Author: xtachix, Location: omanPosted: Sat Jul 28, 2012 4:04 am ---- i've been looking all over the internet to solve my issue
ok so i dont have a 206 but rather a 307 with ew10j4 engine
so its pretty much the same engine as the gti (and ecu, MM48P)
here's the problem with the car
when i start up the car. for the first 25 seconds it runs fine, after that the car misfires greately and sometimes it switches itself off
this only happens when the engine is dead cold. as soon as it warms up the car then runs fine
i've been reading this whole topic but no solution (its the exact same problem, and i've done all the things the other persons has done on his car) and that includes changing the coolant temp sensor.
I've also changed my o2 sensor, the catalytic converter (it was so clogged up the car wouldn't even idle when cold just shuts off immediately), coil pack, injectors, MAP sensor,
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