Yes, Meth can get sucked in by Vac in the inlet tract. That is solved with a check valve. But I would never spray meth pre- Maf. So that issue of Maf counts going crazy is not a possibility. Just an overly rich condition.(neither is good)Heard from another tuner when datalogging in the higher rpms that a methanol kit hooked up but turned off can still get sucked in the intake and hit the MAF causing the AD counts to peg out, has anybody had this happen?
Really, Eric? I would think the orientation of the Maf would preclude this possibility. I guess the volume/rate of airflow can be enough to lift the "puddle" back up into the electronics. Thanks for the education!It can happen with the nozzle after the MAF. I have caught it on trucks I tuned before. Once it pools enough meth/water it will flow back in front of the MAF during, Light cruise, decel, when shutting of the truck. Then you make a WOT pull, as soon as meth or water touches the heated wire it pegs the MAF and caused an overly rich condition.
Is the check valve right at the nozzle?Bad thing is I have the check valve in the pump and an aftermarket check valve under the hood so not sure what to do at this point