Each days I scan my car with hptuners and have the same problem..

I start the car with 78 of vaccum at idle and 22 inHg on my boost/vac guage

After riding the car few drag strip or normal driving few minutes my vaccum in HPtuners stay at 68 at idle and again 22 inHg of vaccum (this means I don't have vaccum leaks)

I restart the car 5 minutes later and hop! 78 of vaccum....

the problem is when my pcm reads 68 of vaccum he is not on the same cells in the IPW Mult. vs Vac

It result in Open loop an idle AFR of 14.8 at 78 of vaccum and an idle AFR of 10.0



Bad Map sensor??? a bad map sensor can be faulty when the intake goes hot ??

Someone had the same issues ?
thank you

Hooo sorry this is a 2.5 BAR map sensor on a M62 setup

JR-Michaud wrote:Hooo sorry this is a 2.5 BAR map sensor on a M62 setup

Sounds like your scaling is off.....



P&P Tuning
420.5whp / 359.8wtq