New ecm, still have check engine light
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AudiWorld Member
Joined: Apr 2010
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New ecm, still have check engine light
I replaced my ecm today. It was an MMS-311 Hitachi ecm, the exact part that I replaced. When I plugged it in, it threw a new check engine code: 2314. When I looked up this code, it came back as the following:
2314 Transmission to Engine control module circuit. - Check wires for breaks or shorts.
This seems strange to me because my car has a manual transmission. Wouldn't this code only have to do with an auto? Is there a procedure for installing a new computer that I'm missing? I'm going to try disconnecting the battery for 30 min. and see if it resets on its own.
Any ideas?
2314 Transmission to Engine control module circuit. - Check wires for breaks or shorts.
This seems strange to me because my car has a manual transmission. Wouldn't this code only have to do with an auto? Is there a procedure for installing a new computer that I'm missing? I'm going to try disconnecting the battery for 30 min. and see if it resets on its own.
Any ideas?
Thread Starter
AudiWorld Member
Joined: Apr 2010
Posts: 113
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There was a whole bunch of weird things happening that made me feel like the original ecm was shot. Originally, I was getting a code for a vehicle speed sensor. I replaced the sensor twice but continued getting the check light.
That problem mysteriously went away. Then, I had issues with my car stalling out at low idle (like when I shifted into neutral to turn a sharp corner). That problem also went away.
After that, I had issues with the car not starting (it would crank, but not start and run). After that issue stopped occurring, It started having its worst issue. The car will sputter violently, backfire, and stall while driving. This was the final straw because I didn't want that to happen on the highway going 75.
I thought that it could be a problem with the ignition module, but combined with all of the previously occurring issues I assumed it it was all related to the ecm. I grabbed an ecm with the same part number because I assumed it would be a direct replacement. I had not been getting this 2314 code before I changed the ecm, but now that I put the new computer in, I get the code every time I start the car. I don't know if there is a readiness monitor reset or a programming procedure for Audi ecms.
That problem mysteriously went away. Then, I had issues with my car stalling out at low idle (like when I shifted into neutral to turn a sharp corner). That problem also went away.
After that, I had issues with the car not starting (it would crank, but not start and run). After that issue stopped occurring, It started having its worst issue. The car will sputter violently, backfire, and stall while driving. This was the final straw because I didn't want that to happen on the highway going 75.
I thought that it could be a problem with the ignition module, but combined with all of the previously occurring issues I assumed it it was all related to the ecm. I grabbed an ecm with the same part number because I assumed it would be a direct replacement. I had not been getting this 2314 code before I changed the ecm, but now that I put the new computer in, I get the code every time I start the car. I don't know if there is a readiness monitor reset or a programming procedure for Audi ecms.
AudiWorld Member
Joined: Nov 2006
Posts: 153
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From: Lakewood, Co.
try disconnecting your battery for a few minutes to reset light, these have semi volatile memory(atleast in the older ones, not sure about the newer ones)
barring that making the light go away. the other option is calling the ecm manufacturer and pestering them for directions(few conversations with bosch helped me out when i was having ecu issues)
barring that making the light go away. the other option is calling the ecm manufacturer and pestering them for directions(few conversations with bosch helped me out when i was having ecu issues)
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