You will have to let us know but I expect a modern engine with an O2 sensor to adapt so that it runs perfect at any altitude. If you leave it alone. Take it up to Evans or Pike's and see how it does.
You will have to let us know but I expect a modern engine with an O2 sensor to adapt so that it runs perfect at any altitude. If you leave it alone. Take it up to Evans or Pike's and see how it does.how effective is the fuel injection for dealing with major altitude changes?
I'm thinking of doing the same except for the M4, got more reading to do but it seems like the answer.I'm over in Wyoming at 4500 asl. Rode it up to almost 10k feet in the bighorns and it ran like a champ. It was obvious it wasn't making as much power (but those of us up in the clouds are used to that anyways), but it was due to air density as opposed to running rich. Modern fuel injection is pretty good at compensating. My plan is to get the m4 system as well as the pcv with autotune and be done with it. Then it will continually adjust the map for the best performance with the added mods and changes in environment.
Why would it be so rich before remapping. Was the O2 sensor jumped or unplugged?OK - today's follow up:
For a stock ECU map, running Yosh full exhaust, Yam HP air filter, no smog pump, no Cali can, and at an altitude of about 4500', I was getting A/F values in the mid to low 11's (quite rich).
Yes - when you install the Bazzaz, part of the procedure is to disconnect the O2 sensor.Why would it be so rich before remapping. Was the O2 sensor jumped or unplugged?