Hi, I just installed a procharger in my 2004 Silverado HD 6.0 with the 4L80E and 4.10's. I was unable to use the FMU because the 04 doesn't have a return line so i installed 42# injectors and an MSD voltage booster. I reached up on top of the gas tank and got the wrong plug - I put 12volts by mistake to the evap solenoid. I got the check engine light and reconnected the solenoid and wired to pump to the MSD.
I still get the P0452 code and cleared it twice.
Did I ruin the solenoid and should I change it???????
I have a custom burn on the PCM and I want to go to the dyno but need to clear the code...
Should I gut the cats????
Don't want more codes and need to pass NY emissions.
Thank you for any and all help
Dan

 

You can gut the cats, have your tuner turn them off, you will get no SES light.. I would first try and unhook the batt for a half hour or so, see if shuts the light off.

 

if you gut the cats you'll never pass the sniffer...get hiflow cats if your really concerned. Welcome to the boards!

 

Bet that runs nice, keep us posted.

 

Welcome.

 

Changed the gas tank pressure sensor and that solved the code.
Plan to make brackets for intercooler and then a date for the dyno and another flash.
Expecting good numbers with this setup 9-10lbs.
keep you posted and will have signature and dyno pulls soon

 

Welcome and good luck

 

Dont gut the cats what size pulley?Idea on intercooler.

 

thats exactly what my truck looked like when i was putn on my turbo kit. congrats on the pro! 9-10 lbs on a 5.3 should be a nice ride, good luck

 

The OP has a 6.0 so it will be even more fun than a 5.3