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tbomachines 12-05-2014 08:05 AM

O2 sensors? Does the exhaust smell bad at all (I.e. Running rich)? Once it's warm it should go into closed loop and just use the O2 sensors for fuel metering.


Sent from an abacus

oldsinner111 12-05-2014 08:15 AM

new sensor,yes smells rich,will hurt eyes.Just wondering I had mechanic work on car.He forgot to plug in MAP.I replugged it.Could it have done anything to computer.

oldsinner111 12-05-2014 01:15 PM

oK THE HOSE GOING FROM CRANKCASE TO AIR PUMP,FELL OFF. the studder is a whole lots less,but stilll there.working on coolant temp sensor wire.

C280 Merc 03-27-2015 11:45 PM

Hello, I am having the same issue with my c280. Once it warms up the car starts misfiring at stoplights until I put it in neutral. I was just wondering if you found a solution to your problem that I could try.

lsmalley 03-28-2015 02:02 AM

check for vacuum leaks


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