SLK/R170: misfire after 5-10 mins
#1
Newbie
Thread Starter
misfire after 5-10 mins
Hi All
slk 230 year 2000
starts fine runs for 5-10 then starts to misfire
code reader says po301/302//303/304 no other codes come up
not been used over winter was fine before
best place to start
thanks
gary
slk 230 year 2000
starts fine runs for 5-10 then starts to misfire
code reader says po301/302//303/304 no other codes come up
not been used over winter was fine before
best place to start
thanks
gary
#2
Junior Member
Misfire after 5- 10 minutes aounds like it could be heat-dependent. Is it a slight misfire or severe? If oil is leaking at valve cover gasket into the spark plug holes that could be one cause. Or perhaps an ignition coil that malfunctions when it gets warm?
Good luck with her.
#3
Junior Member
The codes are msifire of each cylinder respectively. Double check battery and battery connections?
Cars use standard values when cold for the fuel / air mixture. When hot start to modulate depending of signals from various sensors. A bad MAF for example would effect all cylinders.
Not sure if the car has been garaged in the city or country. Perhaps verify there is no mouse nest in the air intake tubing prior to the air filter or in the exhaust or so. :-)
Cars use standard values when cold for the fuel / air mixture. When hot start to modulate depending of signals from various sensors. A bad MAF for example would effect all cylinders.
Not sure if the car has been garaged in the city or country. Perhaps verify there is no mouse nest in the air intake tubing prior to the air filter or in the exhaust or so. :-)
#4
Newbie
Thread Starter
miss fire
Hi
Thank you was nearly a year ago all sorted was ecu in the end was lots of other things as well pse unit would not rev up but all sorted
now wife very happy
Thank you was nearly a year ago all sorted was ecu in the end was lots of other things as well pse unit would not rev up but all sorted
now wife very happy
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can i fix it (04-18-2020)
#6
Newbie
Thread Starter
that she is first time in years had to let a garage fix a car of mine they had it a month before it was sorted
so felt a bit better after that good job i had another car to drive lol
so felt a bit better after that good job i had another car to drive lol