1999 clk320 check engine light ON
Check engine light on
Symptoms:
1) Uses up more fuel then normal
2) I reset codes and check engine light comes on when idling never when driving
Or freeway speeds
3) check vacuum lines
4) clean throttle body and map sensor
Check Engine Light Codes Showing Up!
Please give me some advice and tech tips
Thank you!
Code P0105
Manifold Absolute Pressure/Barometric Pressure Circuit
DTC Guide:
1) Faulty MAP sensor
2) Faulty TPS
3) Faulty connection/wiring in MAP sensor circuit
4) Short to reference voltage on signal circuit of Manifold Absolute Pressure
(MAP) sensor
Code P0400
Exhaust Gas Recirculation Flow
DTC Guide:
1) EGR valve is clogged
2) Faulty EGR solenoid
3) Open or short in the Exhaust Gas Recirculation (EGR) circuit
4) Broken or damaged vacuum lines
5) Faulty EGR valve
Last edited by isabater; Sep 15, 2016 at 12:07 PM.



