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Ask Proud Hyundai Owner (Corey) Your Own ...
Proud Hyundai Owner (Corey)
Proud Hyundai Owner (Corey), ASE Master/Hyundai Master
Category: Car
Satisfied Customers: 225
Experience:  Working cars 18 years on Hyundais since 1998 acheived highest level of technician awards for Hyundai
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2001 sportage: ambient temp..several random misfire codes

Resolved Question:

2001 sportage barely runs after vehicle and ambient temp gets high. usually engine warm and ambient temp above 60. several random misfire codes and a 0604 code. scan tool shows timing changes to -1.5 degrees up to 15 degrees when trying to accellerate.
Submitted: 8 years ago.
Category: Car
Expert:  Proud Hyundai Owner (Corey) replied 8 years ago.
MakeDescription
P0604GenericPowertrain Control Module Random Access Memory (RAM) Error
Check the coolant temp sensor reading and the air temp sensor readings if they are reading way off this can cause misfires and poor drivability however the code you have in the system is indicating you may have a computer problem
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