I changed my benz C240 2003 make engine its giving a error code PO175
2003 MERCEDES BENZ C240
Idle speed cannot control rpm is 10000 when I start
have the same problem?
Wednesday, February 8th, 2012 AT 4:57 AM
Running rich and also look for vacuum leak
Wednesday, February 8th, 2012 AT 5:06 AM
Its running to rich check oxygen and coolant temperature sensor and also look vacuum leak
Wednesday, February 8th, 2012 AT 5:11 AM
10,000RPM? Hard to believe.
Our reference doesn't show a P0175. I have found a number of mentions of this code in conjunction with a P0172. This means the air/fuel ratio is too rich. Check the fuel pressure. Check for a clogged air filter. Check the gap on the spark plugs(.039) and the plug wire impedance. MBZ doesn't supply shops with a specification for this, but expect in the range of 14Kohms to 20Kohms.