Just bought an '04 Tahoe that has had a number of smaller problems I've been trying to figure out:
-The pedal position doesn't read past 57%
-The fuel gauge reads backwards, E when it's full and F when it's empty.
-No oil pressure reading on the gauge.
-None of the "many" A/C blend doors work. All are full cold and won't move to hot at all.
-The driver's seat fwd/rev motion control is backwards. Forward on the button makes the seat move backwards.
-OBD codes are constantly set for fan control relays, when the truck has mechanical fans.
-And others.
I did an ECM scan and, as you can see in the pic I attached, the ECM looks like it's originally from a 2006 Chevy truck. Different VIN also. My Tahoe "runs" fine. No misfire, all things considered has good power, etc. I'm wondering if it's actually a problem that the ECU doesn't match the vehicle 100%. Could that be the actual cause of some of these wierd problems that I've been chasing my tail on? If I wanted to correct the problem, is it just a matter of having the computer reprogrammed with the correct info, or would I need to get a different ECU and have that programmed to the vehicle, since the one in my Tahoe now appears to be from a different year vehicle?
-The pedal position doesn't read past 57%
-The fuel gauge reads backwards, E when it's full and F when it's empty.
-No oil pressure reading on the gauge.
-None of the "many" A/C blend doors work. All are full cold and won't move to hot at all.
-The driver's seat fwd/rev motion control is backwards. Forward on the button makes the seat move backwards.
-OBD codes are constantly set for fan control relays, when the truck has mechanical fans.
-And others.
I did an ECM scan and, as you can see in the pic I attached, the ECM looks like it's originally from a 2006 Chevy truck. Different VIN also. My Tahoe "runs" fine. No misfire, all things considered has good power, etc. I'm wondering if it's actually a problem that the ECU doesn't match the vehicle 100%. Could that be the actual cause of some of these wierd problems that I've been chasing my tail on? If I wanted to correct the problem, is it just a matter of having the computer reprogrammed with the correct info, or would I need to get a different ECU and have that programmed to the vehicle, since the one in my Tahoe now appears to be from a different year vehicle?