tuning question

[gnturbo]

When using a scanmaster to adjust fp what is more important to watch the o2 millivolts or the int/blm?sometimes I will have high o2's and high blm's?is this actually happening?my o2's show I am rich and the blm's say that the computer is adding fuel due to a lean condition.What gives,I have new pump,regulator and fairly new injectors.I did not know if octane can play games like this.thanks in advance

 

[bruce]

BLs are about low load conditions, ie idle, and cruise.

O2 voltage is some what about Wide Open Throttle. Trying to read O2 voltages at WOT are little more then a guess. EGT, and backpressure effects it's output. To read the exhaust to get any meaningful info means using a Wide Band.

To do anything really meaningful, tune wise you need to get something like a Translator Plus. That gives you alot more options, and ways to actually tune your car.

 

[gnturbo]

my blm's are quite normal at a cruise or idle,like 112-120,usually they are normal at wot also,these cars are awesome but they are also the most tempermental to tune and stay tuned.My car runs like a top,I just wonder if you can spend too much time staring at numbers and getting worried over a glitch.Trust me I will always watch the gauges and scanmaster but It makes me wonder how some people push and tune their cars with no scan tool.Its crazy how everything with these cars and tuning changes with the temp and humidity.I am having a fit now because I am in florida and one day it will be very hot,then the next it will be 48 degrees then it will be raining and the cars shows knock and then runs great the next day with no changes what so ever.I have a friend that has a nice gn with quite a bit of money under the hood,He does not drive it much but I talked him into taking it for a spin,When he gets on it ,it audibly knocks and pings.I asked how long it had been doing that and he said "a few months".I was like holy crap man quite driving this thing until we can get a scan tool on this thing.Now one thing I am confused about When I do get a knock registering on the knock gauge I have only seen 2-3 degrees of retard on the scanmaster.Is that enough to worry about ?

 

[bruce]

Yep, some folks get all carried away on numbers.
If the BLs are reasonable, then just drive the thing.
If a Gn has audible pinging, then something is seriously wrong.

If the car starts driving like dodo, then, that's the cars way of telling you it wants attention, and it wants it now.

 

[gnturbo]

ttt