Could Tuner Cause This?

[harted]

Hi-The dealer just had to replace the fuel injection control module on my truck (luckily under emissions control warranty). It was throwing multiple codes. Would running a mild tune place stress on this component? I'm thinking not, but want to make sure before I reprogram it back from stock to performance tow on my Flashpaq. The first time I got a code I went back to stock, but it kept getting worse. By the time I took it in, it had 11 codes (each cylinder, the control module and two related to the fuel level sensor).

thanks,

dave

[lubbockguy1979]

the tuner is very unlikely to have caused the issue. it is known that the ficms have weak solder joints and are likely to fail. i would not put the blame on the tuner for that

[dougjpr]

I believe that the FICM doesn't like low voltage and that can shorten its life, maybe someone could confirm that. Don't think a tuner will lower the voltage but you may want to keep an eye on the voltage in case there's an issue in the charging system.

[harted]

Thanks-I'll keep an eye on the voltage. I have had the tuner installed for over 4 years with no issues until now.