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Post by fury853 on Dec 4, 2012 21:13:32 GMT -5
How does the 3.0 montero engine do pulling bigger tires? does it bog down any or lose power?
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Post by monty98 on Dec 4, 2012 22:43:18 GMT -5
I don't have any problems beyond staying in gear longer sometimes. Then again I do have a manual, so that might make a difference. Gas mileage roughly the same though.
Sent from my GT-P3113 using ProBoards
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Post by ES_97Sport on Dec 10, 2012 19:51:43 GMT -5
I think what you're looking for is something that will take a GPS speed signal - from a GPS fitted device - and convert it into the pulse required for the speedometer (pulse generator). You can't feed a signal into the OBD port. The speed signal is an output signal (sensor) - that means you can read it with a scanner but you can't feed a signal into it. As I understand the STA-1000, it takes the readings FROM the OBD, and provides you outputs for tach and speedo. It does not intercept the signals, change them and then inject the corrected signals back into the system. Yes, this COULD (in theory) work, but you'd have to chop the hell out of your wireing harness. I think what you're looking for is www.dakotadigital.com/index.cfm/page/ptype=product/product_id=837/category_id=287/home_id=59/mode=prod/prd837.htm. You can wire this into the factory harness exactly the way I did the SGI for the Jeep VSS. Basically, this is just half of the SGI. It already has the input (GPS). It's just the adjustable output half. Pretty slick, actually. Don't know how good it works, though. Their products seem to be pretty good. My SGI works flawlessly. Something to keep in mind. The VSS and front and rear output speed sensors (where installed) are pretty closely tied into the computer system. The ECU/ECM does use them for timing and fuel, amongst other things. If the VSS starts hic-cuping, it'll play hell with the ECU/ECM. Just getting the speedo and tach to read correctly isn't your biggest problem. You need to get the corrected signal(s) to the computer FIRST. If you can do that, the rest takes care of itself. Take a look at the Dakota stuff in this thread www.4x4extremesports.com/transfercase_conversion_idx.php. Hooking into the wiring isn't that difficult if you do it in the right place.  Edward www.4x4extremesports.com |
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Post by 97montysport on Dec 18, 2012 23:10:15 GMT -5
ok dont mean to thread jack, im a new owner of a 97 montero sport 4x4, with no lift can i fit 32" tires or will they rub like crazy? thanks in advance. Mike
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Post by monty98 on Dec 27, 2012 19:58:45 GMT -5
Need to trim the front lower one inch of the valence, and crank torsion bars a little bit. The shop thought I was crazy for trying to fit 31s years ago, then recently I just tossed 33s with the only issue being that when cornering and going over a bump or flexing the suspension in a corner significantly cause rubbing. But you want 32s so I think you should fit them with little issue
Sent from my ADR6425LVW using proboards
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Post by modded99montero on Jan 14, 2013 16:46:36 GMT -5
99montero sport
lift 2"
wheels 31" micky Ts
gas milage 22-25
the reason it is so good is because i installed a areo turbine 2525xl muffler
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Post by mudrunner on Apr 26, 2013 1:08:54 GMT -5
I don't know about the sports but I know on my old 4runner I needed to get a new gear for where my speedo cable goes into the tranny. A good off road shop should know what to adjust your gear too. Also some vehicles in the early 2000's could be programmed at dealers for larger tires, making up for the difference in speed and miles. Just other options.
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Post by monty98 on Apr 26, 2013 1:34:36 GMT -5
I don't know about the sports but I know on my old 4runner I needed to get a new gear for where my speedo cable goes into the tranny. A good off road shop should know what to adjust your gear too. Also some vehicles in the early 2000's could be programmed at dealers for larger tires, making up for the difference in speed and miles. Just other options. Hey I think you're on expedition portal too right? I'm 'shov3lbum' over there, good to see you here too. As far as re-programming I've asked numerous shops and even a master tech(?) from a Mitsubishi dealer and beyond sending the speedometer out for recalibration $$$$ they said there wasn't really anything they could do for me...  then again, maybe I'm asking the wrong places? I don't really care though because I just have a handheld GPS with mileage, heading, altitude, and speed that I use now. ;D |
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Post by mudrunner on Apr 26, 2013 8:29:19 GMT -5
Well this is from when I worked at a Chrysler dealer using the manufacturer's scan tool we had too change tire size on wranglers and other vehicles and it would adjust the speedo as well as I think shift points for the larger tires. And the gear thing was something I found out from a Jeep guy when I was talking about getting bigger tires. But it all depends on the car too. Mitsu might not have that set up, it would be all too easy if companies were too use a good system like that.
Yeah I decided since I had a sport not the full size this would a better place to get info.
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Post by ES_97Sport on Apr 26, 2013 14:18:36 GMT -5
Well this is from when I worked at a Chrysler dealer using the manufacturer's scan tool we had too change tire size on wranglers and other vehicles and it would adjust the speedo as well as I think shift points for the larger tires. And the gear thing was something I found out from a Jeep guy when I was talking about getting bigger tires. But it all depends on the car too. Mitsu might not have that set up, it would be all too easy if companies were too use a good system like that. Yeah I decided since I had a sport not the full size this would a better place to get info. Mitsubishis are not Toyotas. There isn't a selection of speedo gears - at least in the US, so that's pretty much out. I'm not sure how much you can do inside the ECM/ECU since the speedo is still mechanical. Typically, reprogramming ability within the ECU/ECM is found on vehicles with electronic VSSs as you have no ability - obviously - to change 'gears' on an electronic sensor. ;D BTW, the '97-'99 ECU is not reprogrammable - at all, for anything. Some '99s and the '00+ ECMs are - to some extent. Anyone want to put in the 2-3 months of screwing around with their vehicle's computer - risking bricking it - and the $$$ for all the software and hardware - let us know how it works.   Which is why I suggested the SGI. ;D And, again, since no one appears to be paying attention - the vehicle speed is used by the ECM/ECU and having it out of wack, not working or not working correctly will affect gas mileage. Thought I'd put that in since this used to be a gas mileage thread once upon a time. ;D ;D Edward www.4x4extremesports.com |
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Post by monty98 on Apr 26, 2013 17:49:58 GMT -5
...And, again, since no one appears to be paying attention - the vehicle speed is used by the ECM/ECU and having it out of wack, not working or not working correctly will affect gas mileage. Thought I'd put that in since this used to be a gas mileage thread once upon a time. ;D ;D Edward www.4x4extremesports.comThat.^^ I didn't no that really? What does the ecu think is happening? Not enough miles for the gas spent? Does it dump more gas into the system/run rich as a result? |
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Post by ES_97Sport on May 3, 2013 19:21:07 GMT -5
...And, again, since no one appears to be paying attention - the vehicle speed is used by the ECM/ECU and having it out of wack, not working or not working correctly will affect gas mileage. Thought I'd put that in since this used to be a gas mileage thread once upon a time. ;D ;D Edward www.4x4extremesports.comThat.^^ I didn't no that really? What does the ecu think is happening? Not enough miles for the gas spent? Does it dump more gas into the system/run rich as a result? I haven't had a lot of time to dig into it. I'm still in the process of moving into my new place. In my case, with a intermittently failing signal, what appears to happen is it screws up some table(s) which leads to a random rich/lean condition. Its most obvious when continuously monitoring the fuel trims. ST fuel trims go all haywire which trashes the LT fuel trims. My old Autoxray scanner cable went south a couple months ago and I haven't had time to hook up my laptop, but what may happen if the VSS is in a completely failed state (no signal), the vehicle goes into 'limp home' mode. Gas mileage and power are degraded as always in that mode, but otherwise the vehicle runs normally. This is what I THINK happens. I've driven my big Sport several times for quite a distance with no VSS hookup, but never with the scanner hooked up, so .... I can definitely say it FEELS like it's in 'limp home' mode, though. I'll check after I fix my current problem and see how that works. With an intermittently failing VSS signal, what I see is the fuel trims go all sideways. VERY sideways. IOW, I can go from -3 LT and +0.8 ST to -3 LT and +15 ST, which then horks up the LT which goes to +5 LT and +10 ST, which forces a major rich condition which causes the ST trims to go to -12 to -15 .... Eventually everything bounces around a lot and settles back down to something sane. Most of the time. Several times I've actually had to reset the ECU because it apparently screwed up the tables so bad that continued driving wasn't sufficient to get things back to normal. This isn't helped by the fact that - in general - any time the trims go beyond +/-10 to 12, the ECM/ECU gets cranky. And, yes, mileage is severely impacted. Sigh. Edward www.4x4extremesports.com |
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Post by mudrunner on May 3, 2013 23:43:00 GMT -5
They call it Base mode, limp home or limp mode actually puts the vehicle into a locked state usually in 2nd gear with A/T and will only let you go 30 MPH.
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Post by monty98 on May 4, 2013 13:58:16 GMT -5
Yea I definitely am not in limp mode, but my mileage around town has been severely impacted recently. Was fine all last year even with larger tires. Recently however since I have moved in to a city and thus requires no highway driving my mpg is down to about 16/17 mpg. Which consequently means about 250 miles a tank...which really sucks.
Although looking at the EPA tables for my 3.0l with a manual trans that is dead on if not a little above even for city. Surpsingly my mpg for highway with a manual is really up. About 21/22 mpg, which seems backwards for a manual, but again is inline with the EPA estimate for my vehicle. Goes to show, I'm actually better off driving at a higher speed longer distance than shorter distance slower speed.
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Post by ES_97Sport on May 7, 2013 15:50:59 GMT -5
They call it Base mode, limp home or limp mode actually puts the vehicle into a locked state usually in 2nd gear with A/T and will only let you go 30 MPH. I have 5-speed manual transmissions. Edward www.4x4extremesports.com |
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then again, maybe I'm asking the wrong places? 
