major problem car is bogging at 2200rpm, can udp cause this??
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replaced all coils, fuel filter, checked Maf, new y pipe from budget. Went into the shop for a y pipe and udp install, came out bogging and hesistating

 

udp is from southwestern auto works, y pipe from budget

 

did you try clearing any codes?

 

R you sure the maf is good?

 

i have a obd2 scanner, i am also getting IAT sensor fail, but this is b/c i have a short ram intake, and the IAT is not being used. I have cleared the codes, same problem, when i put in drive, hold brake and accelerate, at 1400 rpms the car hesistates.

 

the maf, has been changed with another one from the junkyard, i suppose i can also try one from my friends maxima as well.

 

more than likely the MAF sensor you picked up from the junkyard is bad.