Hello Friends,

My M.626 does not pitck-up speed until after a 5Km drive and when ascending a slope, it almost trotts.

I got the following codes after running a scan:

P1101 - Mass Airflow Sensor Circuit out of self test range

P1116 - ECT Sensor Circuit out of self test range (what is ECT?)

P1127 - HO2S Bank 1 Sensor 2 Heater Not on during key on engine running self test - (whats the HO2S Bank 1 Sensor?)

P1474 - Fan control (Primary winding) circuit (What is the primary winding circuit)

P1479 - Fan control (Condenser Primary) circuit

P1650 - Power steering Pressure Switch out of range fault.

Please I need some knowledgable member to kindly explain to me what these codes and descriptions require me to do in order to fix this machine back to its top performance.

I will greatly appreciate your replies.

Cheers!

 

Too many codes. Effect one repair at a time, check battery connections etc before starting. p1101 MAf- clean the MAF hotwire with contact cleaner first before replacing. Clear codes and recheck after test drive.
p1116 ECT ( Temp sensor to the PCM used for performance controls like injector dwell/fuel pressure/etc) Replace and clear codes,test drive and recheck.
HO2s (oxygen sensor heater) The heater is only used on cold start. This will not effect performance.
Fan control codes are usually a relay/fuse/fan motor going out. Check connections/fuses/operation.
Power steering pressure switch is most likely disconnected at the pump.
I would clear all codes first then test drive and see what comes back. Was this car wrecked and repaired?

 

Thanx Hixx.

I 'll do as adviced.

I got the car from a dealer by this time last year who brought it from N.Carolina.

I really dont know if it was wrecked and repaired before importation to my location (Nigeria).

However, it has been performing fine until it had a Top Cylinder Gasket problem sometime in November. Since then, I have had to change the Top cylinder twice.

Now, its speed has reduced... it doesnt pick up speed at short distance, climbing a slope is like trottin. Some Mechanic says it could be time to change the fuel pump/filter but I m skeptical about some of these Mechanics. I really need to get good advice so they dont fully wreck this car.

I ll get the parts and clear the codes as advices .. then I ll get back to you guys on any improvements.
Thanks again.