Possible lean Condition

Ram5773 · Dec 20, 2006

If you guy's can give me some advice please, I bought a used Densecharger with a Pro m 85mm Mass that is calibrated to work together as a kit to go with the stock injectors.

Now my question is do you think that kit will cause the car to run lean?
I also have a Superchips max micro tuner installed on the car too. This could also be a lean possibilty too.

Could these two together cause serious lean problems?? I have been running the set up for two days and the car runs great, No Cel light. I understand that the stock Mass meter is probaly good for what is done to my car but I bought the Denscecharger kit for a song and I would like to use both parts. Should I remove the Pro M a put the stock mass airflow back or just remove the tuner? I have no detenation that I can hear?

How much will the adaptive stratagy cover if it is lean fuel wise?

I still have a stock throttle body and plenum but there is a accufab set up sitting under the tree as a present . My other mods are just a catted h-pipe and cat back. I know that I need to get the car to be data logged but right know I'm christmas POOR

I don't want to screw my car up by possibly running it lean. Guy's what's your thoughts. Sorry for the long and possibly confusing post

Thanks Ram:SNSign:

the98stang · Dec 21, 2006

Get it on the dyno if you are so concerned about it running leaning. If you have an intake and no other mods, your car will run slightly lean. Exhaust would balance it out.

twogts4us · Dec 21, 2006

If it were me, I'd err on the side of caution and put the OEM MAF back on until you can get on a dyno.
OEM MAF: -1 HP
Dyno time/tune: $200
Blowing the engine because you chose not to put the OEM MAF on: Priceless
(Tongue in cheek here guys, but there's some truth to this!)
(Also, be aware, just because you don't hear detonation, doesn't mean you aren't lean.)

jstreet0204 · Dec 21, 2006

The ProM Maf is most likely making it rich, but never change the MAF without a tune. Attached is a comparison of the curves of a ProM-19 to a stock MAF. Notice that the same voltage on the ProM indicates less air flow than the stock MAF. This means, that the air actually coming in through the ProM is less than what the EEC thinks is coming in, so the eec will add more fuel.

The ProM is the green line.

Possible lean Condition

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the98stang

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Possible lean Condition

Ram5773

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