Lanos 1.5

realmadrid6 · Post by **realmadrid6** » Mon Jan 24, 2005 10:38 pm

Hey,

My CEL turned on just recently and the car is pulsating, reving. Not sure if it is because of the cold or what but I think its the O2 sensor.
Any thoughts.

Edit: Just today the Light went off after 3 days, maybe the cold i do not know. Any suggestions

MMamdouh · Post by **MMamdouh** » Mon Jan 24, 2005 10:43 pm

If you have a CEL then get an OBD scan... most people try to speculate the CEL reason but that isn't right, get it scanned so you can be 100% sure of your problem.

MMamdouh

DomWoo · Post by **DomWoo** » Tue Jan 25, 2005 12:49 am

sounds to me like its either the MAP sensor... or Idle sensor

check your vacum hoses then go from there

MMamdouh · Post by **MMamdouh** » Tue Jan 25, 2005 9:16 am

with my experiance on the 1.5 engine, i have took off the MAP sensors' pipe and it triggered the CEL but when i took off the idling speed sensors' socket it didn't trigger the CEL nor did the socket of the TPS nor the O2 sensors' socket.

it is far more accurate to get the OBD scan but it won't hurt to check the vacuum lines... just in case.

MMamdouh