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Discussion Starter #1
Hello everyone, I have an 05 neon srt with an 04 pcm. To get rid of the battery light common with this setup I've installed the battery temp sensor delete from modern performance. After install the battery light went off and the car was driving fine with no lights, however after starting it this morning I noticed a cel with a p0073 code. Any insight on this is appreciated, thanks a lot.
 

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Probably not you battery temp sensor.

Or you maybe had multiple codes in addition to the Battery Temp Sensor code?


See https://www.obd-codes.com/p0073


EXCERPT:
The PCM receives this input and possibly two more; Intake Air Temperature (IAT) and Engine Coolant Temperature Sensor (ECT). The PCM looks at the AAT sensor voltage and compares it to the IAT/ECT sensor readings when the ignition switch is first turned on after a long cool down period. This code is set if these inputs vary too much. It also looks at the voltage signals from these sensors to determine if they are correct when the engine is fully warmed up. This code is usually set due to electrical issues.

Read more at: https://www.obd-codes.com/p0073
Copyright OBD-Codes.com
 

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Discussion Starter #3
P0517 (battery temp sensor high) and the battery light were the only code and light on before the install, both disappearing after the battery temp delete install.
Seeing as the pcm reads voltage and triggers a code when reading a low voltage at the battery temp sensor compared to the other sensors you mentioned - would having the battery temp sensor delete spliced into another line (brown and yellow line in pin 17 per installation instructions from modern performance) cause a lower voltage to be recieved and trigger the CEL?
 

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P0517 (battery temp sensor high) and the battery light were the only code and light on before the install, both disappearing after the battery temp delete install.
Seeing as the pcm reads voltage and triggers a code when reading a low voltage at the battery temp sensor compared to the other sensors you mentioned - would having the battery temp sensor delete spliced into another line (brown and yellow line in pin 17 per installation instructions from modern performance) cause a lower voltage to be recieved and trigger the CEL?
Sorry, no idea.
 

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I dont see the Batt temp sensor delete on modern's site but message this guy bc he should be the one who made it. Very helpful person.

As far as your issue, I ma not following which code youre dealing with. Try these threads first.

*P0073
https://www.srtforums.com/forums/f87/p0073-code-731873/

https://www.srtforums.com/forums/f24/p0073-cel-code-ones-different-though-598359/

*P0517
https://www.srtforums.com/forums/f25/p0517-code-anyone-fixed-142323/

https://www.turbododge.com/forums/f111/f122/f150/f177/330050-p0517-diagnostic-code.html

Good luck, im tuning in bc I may be doing this same install soon
 

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Discussion Starter #6
Thanks for the info. Here's the link for the batter temp sensor delete on modern performance l.http://www.modernperformance.com/product/2214/940.

Code and CEL engine light is now gone. I unplugged and plugged back in the ambient air temperature sensor (sensor in the intake) then disconnected the battery for a minute. When I connected it back on, the code and light were gone and hasn't come back since.
 

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Thanks for the info. Here's the link for the batter temp sensor delete on modern performance l.Battery Temperature Sensor Delete Harness, Connectors: Store Name.

Code and CEL engine light is now gone. I unplugged and plugged back in the ambient air temperature sensor (sensor in the intake) then disconnected the battery for a minute. When I connected it back on, the code and light were gone and hasn't come back since.
That is great to hear. Maybe some crud on the AIT sensor connector.
And resetting the PCM by powering off the battery may have helped unlearn some other malformed adaptive's in the PCM.
 
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