Check Engine Light
05-27-2013, 04:07 PM
#1
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05 c230 sport seden kompressor
Check Engine Light
Hi. I have CEL on my 05 c230ss K.
Before i say anything about codes from OBD codes
I wana say that car was not driving for 5/6 months only thing i woul do is start the car and leave it running for 30min and shut it of. I did not drive the car do to snow and ****y weather here in ohio.
Now back to CEL. AutoZone guy told me it was p0171 and p0128.
When light came on i was on freeway going for road trip to PA. 2 hours from Ohio. Car runns fine no sounds from engine or anything. Car temp is good not over heating . Starts good drives good . I know p0171 is MAF or O2 sensor and ECT ( i dont know what ECT is) and p0128 is thermostart issues.
But agine car runns good. City or Freeway i all good.
When i came to PA i stopt in autozone reset the CEL but came back next day. Could it be do to car siting in garage for so long and i only had lil gas in gas tank . Or maybe when i pull the car out of garage i put full gas tank (93gas ) and i was on my way to road trip.
Any help or anyone that knows what could it be so i dont have to go to dealership for something stupid and eazy fix. I did spray CRC on MAF sensor but check engine is still there unless i have to reaset it now an see if is gona come back. And coolant tank is full.
Thank you All for help
Before i say anything about codes from OBD codes
I wana say that car was not driving for 5/6 months only thing i woul do is start the car and leave it running for 30min and shut it of. I did not drive the car do to snow and ****y weather here in ohio.
Now back to CEL. AutoZone guy told me it was p0171 and p0128.
When light came on i was on freeway going for road trip to PA. 2 hours from Ohio. Car runns fine no sounds from engine or anything. Car temp is good not over heating . Starts good drives good . I know p0171 is MAF or O2 sensor and ECT ( i dont know what ECT is) and p0128 is thermostart issues.
But agine car runns good. City or Freeway i all good.
When i came to PA i stopt in autozone reset the CEL but came back next day. Could it be do to car siting in garage for so long and i only had lil gas in gas tank . Or maybe when i pull the car out of garage i put full gas tank (93gas ) and i was on my way to road trip.
Any help or anyone that knows what could it be so i dont have to go to dealership for something stupid and eazy fix. I did spray CRC on MAF sensor but check engine is still there unless i have to reaset it now an see if is gona come back. And coolant tank is full.
Thank you All for help
05-29-2013, 09:37 PM
#2
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Answer
2005 C230 SPORT KOMPRESSOR
My best guess: The mass air flow sensor and coolant thermostat and/or temp sensor are failing.
Replace the thermostat first, it's a basic maintenance item, easy to do and cheap.
Since you tried to clean the MAF using CRC, and it did not fix the issue, a new unit will probably be needed.
thermostat
MB# 2712030575
http://www.pelicanparts.com/cgi-bin/...30575&x=12&y=8
temperature sensor
MB# 0999053800
http://www.pelicanparts.com/cgi-bin/...3800&x=12&y=10
Air mass sensor
MB# 2710940248
http://www.pelicanparts.com/cgi-bin/...0248&x=13&y=10
whunter@pelicanparts.com
.
My best guess: The mass air flow sensor and coolant thermostat and/or temp sensor are failing.
Replace the thermostat first, it's a basic maintenance item, easy to do and cheap.
Since you tried to clean the MAF using CRC, and it did not fix the issue, a new unit will probably be needed.
thermostat
MB# 2712030575
http://www.pelicanparts.com/cgi-bin/...30575&x=12&y=8
temperature sensor
MB# 0999053800
http://www.pelicanparts.com/cgi-bin/...3800&x=12&y=10
Air mass sensor
MB# 2710940248
http://www.pelicanparts.com/cgi-bin/...0248&x=13&y=10
whunter@pelicanparts.com
.
