Turn off check engine light
Perfect for cat codes, EGR codes or OPF deletes. Turn Off Check Engine Light
About CEL SLEEPER - malfunction indicator lamps now gone
Cat Related Faults
Exhaust Related Faults
Turbocharger Faults
These codes can be a PO420, PO421, PO422, PO423, PO424, PO430, PO431, PO432, PO433 or a PO434.
If you car is reporting one of these codes we can help with that.
Turbocharger Faults
Exhaust Related Faults
Turbocharger Faults
In the case of performance upgrades or unexplained turbocharger problems, error code P0234 often occurs. If you have a check engine light for the PO234 code you can now put the light to sleep for that as well.
Exhaust Related Faults
Exhaust Related Faults
Exhaust Related Faults
The CEL sleeper can help with all exhaust related faults. Faults such as a PO400, PO401, PO402, PO403, PO404, PO405, PO406, PO407 and the PO408 fault. If you are experiencing and check engine lights from these codes the CEL sleeper will hide those as well.
You can also delete codes that are related to the OPF/GPF removal on a competition car.