Go HoTO! said:OK, I just read the reast of your posts!!!! Put the dam stock MAF back on. That is most likely the problem. The plenum and the TB added to the lean condition some too, but not a problem by itself. I HAD THE SAME PROBLEM!!!!!! You need a dyno tune to get this thing to work correctly with those mods. I was actually getting a missfire due to the lean condition. It did not occur right away, only when the weather warmed up.
NiteMareGT said:I don't really understand all the problems you guys are encountering with your intake mods. The cars computer should compensate for the extra air by adding a bit more fuel through the injectors. Basically, I'm saying that the o2 sensors pick up on the lean condition, sends the lean signal to the cars ecu, then the ecu sends the signal for the injectors to drop more fuel........Unless the airflow outweighs the fuel pumping capacity of the fuel pump and or injectors themselves, which is not likely without a power adder of some sort.....(ie...when using blowers, turbo, nitrous) I think the biggest problem he is having is that he just won't give the car long enough to learn any new settings before he goes to fiddling with it without resolve. I would personally buy a NEW MAF sensor, and ditch that used one, as I'm not fond of buying used electronics to begin with. Just my thoughts on the matter.........
03gtmustang said:BAD NEWS!!! My engine light came back on. All I have on there is the t/b and plenum, stock airbox. Its still running lean. This is pissing me off so much, Im about to take everything off and go back to stock. My idle is perfectly fine, but its still lean. WTF should I do? I just want that damn engine light to go off. ****ing **** ass bitch wut the hell.
NiteMareGT said:Read my lips............purchase a NEW MAF sensor............problem solved
PG98GT said:Best advice I could give is...before you spend any more money on possibly unneeded parts, go back to stock. Then put the new parts on, one by one to help isolate any problems. Start at the end of the intake and work your way in. Such as, change to a K&N filter, make sure it's running right and no check engine lights, then change the MAF or cold air intake whichever part you have, and continue the process all the way to the upper plenum. This is the way I did it and always suggest to do it, even if the car isn't having any problems. This helps isolate the problem, if the car begins to run bad, so you can go back to the original part and skip over the offending part, then try the next new part to see if your computer/engine "like" the part. It is time consuming, but it does save you from possibly buying unneeded parts. Good luck, but it's not as complicated as hunting down an electrical problem, so it could be worse.
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