maf was wired correctly no doubt triple checked and i had some resistance throughout the chassis so i ran the wire for chassis ground all the way to the negative terminal on the batt. lol ...its a tomei z maf plug ...so its color to color cept theres a brown for chassis ground. black with white is 12v (which i have on the plug) black is ground (continuity to chassis) , brown ground, and white to white which is signal wire....with ignition on car not running i was told i should have around .4volts DC on white.....had NONE to either ground wire or chassis.....but from black with white to the wire it would lower the voltage to around 9 or 10volts ....
SR20det Breaking up bad.....Just installed a lot of stuff
SR20det Breaking up bad.....Just installed a lot of stuff
alright heres the deal....just installed tomei 740's with a nismo FPR, a Z32 MAF, and an RS-Enthalpy tuned ecu (ecu had dyno time with martin from enthalpy)....the ecu had the same injectors , fpr, and maf (exactly bought them off that car...it ran).... except instead of 264/264 cam's i have Crower 272/272's with hks gears and supertech springs/retainers and degreed in properly, other car also had 9.0 : 1 or so compression and a .83 bore....im stock bottom end. also it had a gt2860r with t3 exhaust side or some hybrid like that running 1bar. and i have stock turbo on 13psi....now my car breaks up BAD in higher rpms and either at 50% throttle or 100% or lower rpms at barely any throttle lol may be too rich i guess but i was told it shouldn't be THAT much too rich and i would think it would only be under boost, or my Z maf.....if its my MAF i really cannot figure out the issue and am getting unhappy lol maf was wired correctly no doubt triple checked and i had some resistance throughout the chassis so i ran the wire for chassis ground all the way to the negative terminal on the batt. lol ...its a tomei z maf plug ...so its color to color cept theres a brown for chassis ground. black with white is 12v (which i have on the plug) black is ground (continuity to chassis) , brown ground, and white to white which is signal wire....with ignition on car not running i was told i should have around .4volts DC on white.....had NONE to either ground wire or chassis.....but from black with white to the wire it would lower the voltage to around 9 or 10volts ....
maf was wired correctly no doubt triple checked and i had some resistance throughout the chassis so i ran the wire for chassis ground all the way to the negative terminal on the batt. lol ...its a tomei z maf plug ...so its color to color cept theres a brown for chassis ground. black with white is 12v (which i have on the plug) black is ground (continuity to chassis) , brown ground, and white to white which is signal wire....with ignition on car not running i was told i should have around .4volts DC on white.....had NONE to either ground wire or chassis.....but from black with white to the wire it would lower the voltage to around 9 or 10volts ....-
compactfean
- Posts: 2602
- Joined: Thu Dec 03, 2009 10:28 am
- Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily - Location: reno nv
Re: SR20det Breaking up bad.....Just installed a lot of stuf
Black with white should be battery voltage. White signal should have .4 with out running.
#1 how many screens does your maf have?
#2 how much pipe do you have directly before and after the maf that is straight?
#3 what type of air filter are you using and how close is it to your maf?
#4 how do you have your bov and catch can routed?
#1 how many screens does your maf have?
#2 how much pipe do you have directly before and after the maf that is straight?
#3 what type of air filter are you using and how close is it to your maf?
#4 how do you have your bov and catch can routed?