View Poll Results: Is your SC400 faster without the MAF?
Yes
17
32.08%
No
5
9.43%
I think this is a stupid post
20
37.74%
Its impossible so I will not even accept it as a possibility
11
20.75%
Voters: 53. You may not vote on this poll
Unplugged MAF = More torque, gas, fun 92-94
#1
Unplugged MAF = More torque, gas, fun 92-94
How many people have realized that their 400 runs better without the MAF connected? I myself have, and so have two fellow 400'ers. We don't know why it is the way it is, but it is certainly faster without the MAF. The feeling is no placebo effect either. The torque is completely lacking with it plugged in.
If you have never done it, give it a try and vote.
MAY ONLY APPLY TO 92-94
If you have never done it, give it a try and vote.
MAY ONLY APPLY TO 92-94
Last edited by BartleDoo; 09-15-10 at 11:12 PM.
#5
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Join Date: Aug 2010
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I have a 1995 sc400. Maf is going out because I cleaned it with MAF cleaner and may have not let it dry enough. A surprising amount of dirt came out of it when I cleaned it. It was getting so bad i couldn't 3/4 the pedal because it would bog out. Just pulled the maf plug and it runs great now. Most power I've felt and no hesitation but still going to put the maf i got coming (wit 39k miles) on it.
#6
Hmm...Maybe it isn't only 92-94.
Our (me and two friends) MAF sensors are fine. That is the weird thing. I'm thinking that there is possibly a faulty signal from the 02 sensors when the maf is plugged in, and of course the O2 signal is ignored when the maf is unplugged. That is complete speculation, though. Perhaps the harness has been affected by 17 years of hell? As soon as the car warms up with sensors connected, it becomes slow. Never seen a car that runs so well, much less better, without a MAF.
Our (me and two friends) MAF sensors are fine. That is the weird thing. I'm thinking that there is possibly a faulty signal from the 02 sensors when the maf is plugged in, and of course the O2 signal is ignored when the maf is unplugged. That is complete speculation, though. Perhaps the harness has been affected by 17 years of hell? As soon as the car warms up with sensors connected, it becomes slow. Never seen a car that runs so well, much less better, without a MAF.
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#8
let my car warm up. turned it off. unplugged cable from maf. turned on. trac off light came on and check engine light came on. flipped on the pwr accel switch. boy it is waaay more responsive. touching the gas pedal you can tell it just wants to go. exhaust smelled funny kinda like it was leaning out and then trying to adjust. after it adjusted it is definitely chuck full of torque! so weird. plugged it back in with the car off. turned it back on and it was so slow compared to before when it was plugged in :-(
edit: oh and i have a 92 and when it was unplugged it ate my gas alive! lol
edit: oh and i have a 92 and when it was unplugged it ate my gas alive! lol
Last edited by Sohconthis; 09-16-10 at 12:30 AM.
#12
let my car warm up. turned it off. unplugged cable from maf. turned on. trac off light came on and check engine light came on. flipped on the pwr accel switch. boy it is waaay more responsive. touching the gas pedal you can tell it just wants to go. exhaust smelled funny kinda like it was leaning out and then trying to adjust. after it adjusted it is definitely chuck full of torque! so weird. plugged it back in with the car off. turned it back on and it was so slow compared to before when it was plugged in :-(
edit: oh and i have a 92 and when it was unplugged it ate my gas alive! lol
edit: oh and i have a 92 and when it was unplugged it ate my gas alive! lol
Can you explain more detail on how it ate the gas alive? lol Basically you went through a tank in 1 day or what>? Driving like a beast>?
No one seems to be clear on long term affects here and/or how it affects MPG? Can anyone shed light on this?
#15
^^We have manuals.
The effect definitely does not wear off after 20-30 minutes. I do pull my efi fuse every couple weeks for shlits and giggles to make sure it doesn't adapt or something. As for gas, yyyea it uses more, but it's totally worth it to me. I could see the o2 sensors getting fouled out after using this for a long time, but if you unplug the maf, then you aren't using them anyways, right?
The effect definitely does not wear off after 20-30 minutes. I do pull my efi fuse every couple weeks for shlits and giggles to make sure it doesn't adapt or something. As for gas, yyyea it uses more, but it's totally worth it to me. I could see the o2 sensors getting fouled out after using this for a long time, but if you unplug the maf, then you aren't using them anyways, right?