Where is the Governor?!

Hey everyone! Alright I may have a simple or hard question for all you Nissan people out there. Does anyone know where the governor chip is located? For the people who don't know what a governor is, it's a chip that stops you from going over excessive speeds. For example, in my 1993 240Sx SE Fastback, I cannot exceed 115 mph the chip will automatically slow you down. If anyone knows where this chip is located please e-mail me or post it here so that everyone can see how to remove it, thank you!

im not exactly sure but i always assumed it had to do w/ the ECU but im sure im wrong and someone else actually knows what there talking about logik u got this one

I think it's in the speedo because if you unplug the speedo you can go faster.

I think its in the ECU because when you unplug the Speedo the ECU is no longer getting the signal of how fast your going so it thinks your going whatever speed and limits nothign thats my understanding...thanks for holding my hand through the Governor speech noob

The speed limiter and rev limiter are both controlled via the ECU. The only way to stop either is to interrupt the signal to the ECU, reprogram, or purchase a different ECU.

Ok, well I learn something everyday.

thats what i was thinking see sometimes im actually right. yes!!

Ever wonder why the speed cut goes away and the rev limit is raised when you buy a JWT ECU?

nope cause ive never bought a JWT ECU

or should I say when one buys a JWT ECU.

Alright, so I'm gonna with Nissanfanatic on this one. He says it's in the ECU and that makes alotta sense. But I'm wondering if unplugging the speedometer would really work. But then again, how do people know that their going faster with the speedometer unplugged, wouldn't u not know how fast your were going, and wouldn't u not how if you were passing 115mph? Something to think about. Hit me back!

Gps???

hit your top speed and then drive for a hour without stopping... if you travel a distance of more than 115miles than you are going faster...

lolz...

i don't know about 240's but in the maxima's there is a pink wire with a blue stripe on it coming out of the ECU to remove the governer you cut the pink/blue wire and tape the ends off. the only downside is a never ending CEL. disconnecting the speedo works too.

haha ok that is probably the least logical shot at this issue. first, he has an s13. you have a maxima. totally different cars from totally different years. his is 93 and your maxima looks like a 2002. the ecu wiring is probably totally different cause there's more to a maxima than a 240.

and nismo boy, what is it you're doing that requires you to drive more than 115mph??

He is attempting to be stupid, cause I guarantee he doesn't plan on doing it on a track.

WANGAN!!!111!




Unplugging the Speedo will work since it inputs into the ECU too. I tend to drive slower without the speedo since I dont know my RPM vs Speed that well yet.

Alright, you can remove the speed cut by cutting the 8th wire down on the left side of your ECU. Its a yellow wire with a green stripe. There are two of them so be careful. So BP2K2max(sp) is pretty much correct in the speed governer department.

The problem is you still have a 5k rev limit in 5th gear. Don't believe me?

1)start your car and allow it warm up. Not warming up the engine is the #1 cause of internal engine failure. Just food for though.
2) put the car in 5th gear, rev the engine with the clutch in. It will limit at 5k.

You can unplug the 5th gear sensor on the tranny, but there are side effects. www.240sx.org has write ups on this.

Unless you guys haven't noticed, losing the speedo(lose the speedo..haha) past 110mph isn't that big of a deal.:rolleyes:

R.W. 240, this should put you in the ballpark: http://www.speedworldmotorplex.com/calc.htm

That website is stupid, 2000rpm in a Viper is a different speed then 2000rpm in an Echo.

couldnt you just use GPS after the speedo is disconnectec?? I would like to know because we just bought a nice GPS system and i havent even used it yet but would like to.

That website is stupid, 2000rpm in a Viper is a different speed then 2000rpm in an Echo.

So you're telling me that 2000 RPM in one engine is a different engine speed than 2000 RPM in another? Duh, engines 101 here.

The only difference is how it is geared. A viper transmission can use much taller gears as it has the power to support them. An echo requires much shorter gears to make its low power useful to the average joe. Hence, the echo with the vipers power would run out of gearing very soon.

Now go back and read the directions. Particularly the part about how to find overdrive speeds. You'll also need the stock tire and rim size, final drive, and transmission gear ratios.

I meant vehicle speed not engine speed.

Alright, thanks everyone who replyed to my forum. Your right, it is an attempt to go faster than the 115mph mark, and yes I agree it is stupid, but hey, I'm young and I don't have much to live for accept cars. The other reason why I wanted to know this information was becuase most of my friends own new cars, and they can definitely pass 115mph on the highway. I can def. beat them off the line, but once I hit 115mph, the race is all theirs. That's all. Thanks again for that information.

why are u racing past 115 your car probally cant get up to 100 in a quarter mile and if you are just racing to see who can get somewhere the fastest you are stupid and shouldent have a car because that is how people get killed and all of the younger kids insurance to be so high.

Jesus...


Who hasn't tried to top thier car out? This whole "I'm mature about driving when I'm 18, will be when I'm thirty and I despise anyone who has ever ingaged in any kind of driving over the speed limit" needs to stop. It doesn't make you look any cooler than the idiot that is bragging about it. Yea the quote "I don't have much to live for except cars" is a little vin diesel-ish but the guy asked a simple question and didn't ask for your opinion on his driving habits.

Highway racing over 100 is not that big of a deal as long as its a clear highway. And BTW, 155BHP isn't gonna get you anywhere past about 60mph. Notice you die after second gear? Try I/H/E and I bet you'll like the difference over 4500rpm.

I meant vehicle speed not engine speed.
Yes, but 2000 rpm has NOTHING to do with vehicle speed. It is the revolutions per minute of the engine.

Yes, but 2000 rpm has NOTHING to do with vehicle speed. It is the revolutions per minute of the engine.

For christ sake, what I meant was, you can go fucking 80mph in first gear in a Viper, you can't go 40 in an Echo, how can this program tell you vehicle speed and E/Ts with the engine speed??!!

Multiply the final drive by the gear ratio of the gear you are using and input that as your X=final drive for the calculation. It says it right there in the instructions.

For example, final drive of a 240sx is 4.08 which is what you would typically use for the variable. Well *SAY* fifth gear is .799 because I don't know what it really is and I'm lazy. Multiply 4.08 by .799 and you get 3.26. Enter 3.26 and you can get speed in 5th gear.

ok.

Feel better now?

Sure, why not.

haha ok that is probably the least logical shot at this issue. first, he has an s13. you have a maxima. totally different cars from totally different years. his is 93 and your maxima looks like a 2002. the ecu wiring is probably totally different cause there's more to a maxima than a 240.


sorry for the late reply.
yes, mine's currently an '02 but i had a '93 and a '95 maxima prior to this one and that was also the procedure for those cars too. i know the wiring is different but i was just trying to give him an idea where to look.

i dont know much about cars.... (yet)
but i'm in the air force and we have these mini "pickups" we use to get out on the flightline (where the planes ar parked)
anywho... the "mightmights" as they're called, (2 person Mitsubishi supermini "truck"), have a gov that wont let it do over 20MPH, but if you turn the ignition off and on briefly as soon as the gov kick in you get about 3-5 sec of ungov power....
if you keep doing it over and over you get about 40-50mph, but the speedo only reads to 25...lol

but i guess this would only work on cars with manual transmissions...

hope this helps,
mai0f

They still have manual trannies in military vehicles? I thought they stopped doing that because all the new recruits were pussies and couldn't drive standard.