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
10-20-10, 07:34 AM
#81
Lexus Test Driver
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well my car has been running like complete A$$ for about 2 months now because my knock sensors are bad and kept retarding my timing. so since i have unplugged my mafs my car runs a whole lot better(faster) and gets better gas mileage. i was on average getting 210miles to a full tank now i get 235-40 on average but thats only from to 2 refills! i think im the most excited of everyones mafs unplug =) bc it kinda fix/tricked my car.
im pretty sure its advancing my timing to where it finally goes around the CEL knock sensors and runs "better" like everyones saying.
my car is a sc400 1994 automatic. only hits rev limiter from 1st to 2nd for about 2-3 hits at 6k than shifts fine into 3rd havent gone fast enough to have 3rd go into 4th at redline. also my car cold starts everytime and idles just fine when warm
i will keep it this way until i feel like changing my knock sensors and O2 sensors
im pretty sure its advancing my timing to where it finally goes around the CEL knock sensors and runs "better" like everyones saying.
my car is a sc400 1994 automatic. only hits rev limiter from 1st to 2nd for about 2-3 hits at 6k than shifts fine into 3rd havent gone fast enough to have 3rd go into 4th at redline. also my car cold starts everytime and idles just fine when warm
i will keep it this way until i feel like changing my knock sensors and O2 sensors
10-26-10, 10:24 PM
#83
Driver School Candidate
my car seems to have slightly better throttle response with the harness pulled and it definitely smells a little funny, but it doesn't seem really to be that much faster to be honest.
it falls on it's face at around 5000 rpm though in 1st and 2nd (didn't make it to third at WOT). Kind of like you hit the rev limiter.
after i plugged it back in things went back to normal.
I give it a solid...meh...
it falls on it's face at around 5000 rpm though in 1st and 2nd (didn't make it to third at WOT). Kind of like you hit the rev limiter.
after i plugged it back in things went back to normal.
I give it a solid...meh...
10-27-10, 12:13 PM
#84
Driver
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So what are we talking here?? Maybe 15 whp, with less gas mileage, everyone behind u smelling gas, also if your on stock exhaust your probably going to clog up your 13 yr old cats alot faster. IMO probably not worth it. U v8 guys should have no problem bolting on 15whp and not losing mpg, smooth idle, not sacrificing reliability(as there could be long term effects of this mod.). Granted its interesting as to why u guys are picking up the tq. looking forward to see if anyone finds out why.
10-27-10, 09:32 PM
#85
Pole Position
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i got a 95 400 and unplugged my maf while trying to solve my misfire under heavy load problem...and WOW unplugged maf makes the car drive way better not to mention all the throttle response and how much more torque it has dont know about WOT but i can say it has more power with no maf....has anyone figured out wht the long term effects are..
10-31-10, 01:08 AM
#86
Lexus Test Driver
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I don't know if you guys realize but on 99% of cars if you unplug the MAF the car will essentially be running blind (i.e. no way to meter incoming air).
What's the car's solution? Well if it can't see the air, it'll dump fuel according to limp home maps. What does an overly rich condition usually do? It'll clog up cats (if you've got them from unusually high EG temps) and it'll also on (80% of the cars I've dealt with) cause the transmission to run blind too resulting in poorer shifts. The O2's normally help trim the map but whenever it defaults to limp home mode they become useless.
If your car runs better with the MAF unplugged, you've got bigger fish to fry imo
What's the car's solution? Well if it can't see the air, it'll dump fuel according to limp home maps. What does an overly rich condition usually do? It'll clog up cats (if you've got them from unusually high EG temps) and it'll also on (80% of the cars I've dealt with) cause the transmission to run blind too resulting in poorer shifts. The O2's normally help trim the map but whenever it defaults to limp home mode they become useless.
If your car runs better with the MAF unplugged, you've got bigger fish to fry imo
10-31-10, 11:32 AM
#88
I don't know if you guys realize but on 99% of cars if you unplug the MAF the car will essentially be running blind (i.e. no way to meter incoming air).
What's the car's solution? Well if it can't see the air, it'll dump fuel according to limp home maps. What does an overly rich condition usually do? It'll clog up cats (if you've got them from unusually high EG temps) and it'll also on (80% of the cars I've dealt with) cause the transmission to run blind too resulting in poorer shifts. The O2's normally help trim the map but whenever it defaults to limp home mode they become useless.
If your car runs better with the MAF unplugged, you've got bigger fish to fry imo
What's the car's solution? Well if it can't see the air, it'll dump fuel according to limp home maps. What does an overly rich condition usually do? It'll clog up cats (if you've got them from unusually high EG temps) and it'll also on (80% of the cars I've dealt with) cause the transmission to run blind too resulting in poorer shifts. The O2's normally help trim the map but whenever it defaults to limp home mode they become useless.
If your car runs better with the MAF unplugged, you've got bigger fish to fry imo
The two of us running without maf locally have deleted cats, and aren't running autos. The auto people attempting this did notice a change in shifting behavior, though. So, that is definitely true.
This is why I am building a megasquirt 3X system with Redphoenix. If we can't solve the system, then we might as well make a better one.
