SOURCE: Service engine code indicates EGR valve.
You could have a restriction in the egr ports. remove the valve. Plug the holes, start engine. 1 hole will be blowing out exhaust, the other will have large vacuum.
SOURCE: i have engine service required message and fault code 042
P0042 : Heated oxygen sensor (HO2S)bank1, heater control -circuit malfunction.
The code is telling you one of the oxygen sensors or the wiring to it is faulty.
SOURCE: Hi,the engine light comes on intermintly?I clear
1100-
C1100 ABS Pump Switch Circuit Failure
P1100 MAF Sensor Intermittent/ Check of all OBDII Systems Not Complete
P1100 FORD Mass Air Flow Sensor Intermittent
P1100 HYUNDAI Map Sensor - Malfunction
P1100 LEXUS BARO Sensor Circuit Malfunction
P1100 TOYOTA Barometric Pressure Sensor Circuit Fault
U1100 SCP (J1850) Invalid or Missing Data for Primary Id
1181-
C1181 Park Brake Valve Solenoid #1 Sense Input Circuit Short to Gound
P1181 Fuel Delivery System Malfunction - High
P1181 FORD Fuel Delivery System Malfunction - High
P1181 HYUNDAI Fuel Pressure Monitoring
U1181 SCP (J1850) Invalid or Missing Data for Personalization (Memory) Features
0004-
P0004 Fuel Volume Regulator Control Circuit High
P0004 Description
Fuel Volume Regulator Control Circuit High is the generic definition for the P0004; however your vehicle's manufacturer may have a different definition for the P0004 code.
Tech notes
The P0004 is an OBDII generic code, but almost none of the vehicle manufactures use it. If you are getting this code, make sure you are using the correct OBDII code scanner for your vehicle's make and model.
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