Need Help With Service Engine Soon Light

[itsA-Gthang]

Hey everyone my check engine light has gone on after i did an oil change. i dont knw if it was the exhuast (greddy tic 3") that i had just put. i also have Z-tube with pop charger and kinetix v+. i did a diagnostic and it says it has a large evap leak. i dnt know where at though. and i checked all the hoses that where relocated on the big sensor that reads the fumes. i also checked the gas cap. so i want to knw if it has to do with my mods and if my computer is just tripping out becuz alot more air is flowing out? do i need to retune my ECU or should i keep looking for the leak?
sry for the long post THANKS!

[poormansporsche]

Originally Posted by itsA-Gthang

Hey everyone my check engine light has gone on after i did an oil change. i dont knw if it was the exhuast (greddy tic 3") that i had just put. i also have Z-tube with pop charger and kinetix v+. i did a diagnostic and it says it has a large evap leak. i dnt know where at though. and i checked all the hoses that where relocated on the big sensor that reads the fumes. i also checked the gas cap. so i want to knw if it has to do with my mods and if my computer is just tripping out becuz alot more air is flowing out? do i need to retune my ECU or should i keep looking for the leak?
sry for the long post THANKS!

If you've checked all the hoses and connectors thoroughly, and you've made note of the diag code that triggered the CEL, why not go ahead and do a reset on the ECU and see if that clears it up. It's easy enough to do, and if it's a hard fault it will most likely come back again anyway. I'm assuming that a reset was never done initially after the mods you did?

[itsA-Gthang]

makes sense! thanks alot. if it comes up than there must be a problem.

[Gilley]

Did you relocate the evaporation cannister when you installed the Greddy exhaust? That might be the leak. Or one of the hoses going to the intake or plenum got missed.

[itsA-Gthang]

yes it did get relocated and i did have a hose loose the second time the light went on and i tightened it and checked all other hoses. than it turned on again about 3 days later. i will check intake and plemun a lil more detailed. thanks.