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Discussion Starter · #1 ·
1 have a 2003 Sorento 2.5 EX Manual, which has drawn up on the motorway 3 times this weekend. <?: prefix = o ns = "urn:schemas-microsoft-com:eek:ffice:eek:ffice" />

The1st time, it started again quickly, and no management light on,
2nd time took a long time to start & management light stayed on.

I called for recovery, and mechanic was sent out with diagnostic equipment.

His kit had a code of P1638ECM - MICROCONTROLLER MAILFUNCTION.

He cleared the code and run engine to find no other codes present, and I continued on my journey.

No more problems with this until about 236 miles later on return journey, just died on motorway, but I managed to get to hard shoulderthen it restarted quickly, and managed to get home ok.

I will check out the tank and change the fuel filter for a proper Kia one /changed 1 month ago with a Blueprint one.

I just need to know about this code number (tech who checked recons it could bethe ECU)

Anyone know???

Cheers,Dave.
 

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P1638 = P1638 ECM(Microcontroller) Malfunction
check battery voltage under fault conditions max 14.5v min 12v
remove ECM cover and check for damaged wiring & corroded connector
(under N/S/F carpet)
if all ok
fault within ECM
 

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Discussion Starter · #3 ·
I HAVE JUST REMOVED THE FUEL GAUGE SENSOR IN THE TANK TO FIND FILLED WITH BLACK GUNDGE.


IT IS NOW CLEANED OUT AND I WILL GET A KIA FUEL FILTER TOMORROW, MEANTIME I WILL CHECK THE WIRING AS YOU SUGESTED,



CHEERS,



DAVE.
 
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