ECU reset: remove fuse or disconnect battery?
02-25-02, 04:21 PM
#16
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Fuse'd it the other day.
Whoa .. Car is even more touchy than before. Almost too good throttle response. Still can smoke the tires ... it may smoke a little easier .. but maybe thats just biased feeling.
Did any of you notice a fuse missing? It was my first time resetting the ecu-b and noticed an empty space.
It was a 20/30 or 40 .. any ideas? (I don't have a Nav, but from the sounds of everyones comments I've read .. sounds like Nav's on the same fuse.
I'll go out and look at it tonite and report back as to which fuse it is exactly.
Whoa .. Car is even more touchy than before. Almost too good throttle response. Still can smoke the tires ... it may smoke a little easier .. but maybe thats just biased feeling.
Did any of you notice a fuse missing? It was my first time resetting the ecu-b and noticed an empty space.
It was a 20/30 or 40 .. any ideas? (I don't have a Nav, but from the sounds of everyones comments I've read .. sounds like Nav's on the same fuse.
I'll go out and look at it tonite and report back as to which fuse it is exactly.
03-27-02, 08:44 AM
#17
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Didn't work for me
I disconected my batery terminal before taking it to the track last month I have ran consitant 14.0's at best top of 101mph, after I reset the ecu my track times BLEW! I ran a 15.06! My tires were a little bit balder but I didn't spin that much off the line and I still cut a descent 60 foot. The next day I was driving my car and pulling out of my neighborhood I got on it and it bogged! It almost seems like VVTI isn't working right, I feel like a honda boy now raving about my vtec not working. I don't know whats going on but the car is at the dealership right now. Hopefully they can figure it out. Oh yeah I forgot to mention I have a 2001 GS430
03-27-02, 09:20 AM
#18
Lexus Champion
Chino -
Resetting the ECu doesn't not give you more hp or torque, it simply redistributes it to lower on the power band.
Think of it as shifting the torque closer to the beginning of the curve.
You'd be more apt to notice it in daily driving, than at a WOT shot. At WOT, the ECU has for all intents and purposes, tunnel vision on air & fuel mixtures.
But, yeah, if it bogged, something is up. Hope the dealer remedies wht it might be; although, when you reset your ECU, it wipes out all error code history. Good luck.
Resetting the ECu doesn't not give you more hp or torque, it simply redistributes it to lower on the power band.
Think of it as shifting the torque closer to the beginning of the curve.
You'd be more apt to notice it in daily driving, than at a WOT shot. At WOT, the ECU has for all intents and purposes, tunnel vision on air & fuel mixtures.
But, yeah, if it bogged, something is up. Hope the dealer remedies wht it might be; although, when you reset your ECU, it wipes out all error code history. Good luck.
03-27-02, 02:09 PM
#19
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Originally posted by Dex
Chino -
Resetting the ECu doesn't not give you more hp or torque, it simply redistributes it to lower on the power band.
Think of it as shifting the torque closer to the beginning of the curve.
You'd be more apt to notice it in daily driving, than at a WOT shot. At WOT, the ECU has for all intents and purposes, tunnel vision on air & fuel mixtures.
But, yeah, if it bogged, something is up. Hope the dealer remedies wht it might be; although, when you reset your ECU, it wipes out all error code history. Good luck.
Chino -
Resetting the ECu doesn't not give you more hp or torque, it simply redistributes it to lower on the power band.
Think of it as shifting the torque closer to the beginning of the curve.
You'd be more apt to notice it in daily driving, than at a WOT shot. At WOT, the ECU has for all intents and purposes, tunnel vision on air & fuel mixtures.
But, yeah, if it bogged, something is up. Hope the dealer remedies wht it might be; although, when you reset your ECU, it wipes out all error code history. Good luck.
03-27-02, 07:36 PM
#20
Forum Administrator
iTrader: (2)
I was looking through one of those flight sales magazines on the airplane last week and came across this little "battery disconnect with fuse" dongle that is marketed to travelers who leave their car sitting for a couple of weeks at a time. Theory is, disconnect the battery from your car and it doesn't drain while you are gone. Also, the handle was removable making your car harder to steal.
HOWEVER,
I think there is a pretty good use for these things to reset our ECUs. They look pretty simple and are cheap.
I found two types. The 'normal' type like I saw in the magazine, looks like a water faucet ****.
Link to more original battery disconnect details
The second type I found while searching for the other... Apparently a safety item on many drag cars are battery disconnect devices. There are a bunch of them on the net, here is a link for some of them at Summit Racing. These don't look quite as simple as the first variety, mostly because I can't visually see (at least the ones I looked at) how they disconnect the source.
Link to Summit Racing Battery Disconnect devices.
Anybody got experience with either of these? Think they'll work? I also saw one with a remote switch
but it was a hardwire.
HOWEVER,
I think there is a pretty good use for these things to reset our ECUs. They look pretty simple and are cheap.
I found two types. The 'normal' type like I saw in the magazine, looks like a water faucet ****.
Link to more original battery disconnect details
The second type I found while searching for the other... Apparently a safety item on many drag cars are battery disconnect devices. There are a bunch of them on the net, here is a link for some of them at Summit Racing. These don't look quite as simple as the first variety, mostly because I can't visually see (at least the ones I looked at) how they disconnect the source.
Link to Summit Racing Battery Disconnect devices.
Anybody got experience with either of these? Think they'll work? I also saw one with a remote switch
but it was a hardwire.
03-28-02, 10:27 AM
#21
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Pulled the fuse last night
I purchased a 98GS4 with 34K miles about three weeks ago. I pulled the ECU fuse a few nights ago and then put it back in after about an hour. The next morning, I noticed more aggressive shifting under aceleration and smoother shifting across the range. My wife also commented that she noticed a difference when she drove the car (even though I didn't mention anything about pulling the ECU fuse to her).
07-26-10, 12:03 PM
#22
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sorry to bump this thread but , well there be any codes i would need after i reset the ECU and when i pull the fuse, how long do i wait, and which fuse? did you guys lose any preset memory functions or radio codes? i have a 02 gs300
Last edited by OCLEX03; 07-26-10 at 12:06 PM.
10-25-15, 11:27 AM
#28
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I just had a new catback magnaflow exhaust put on my 02 gs300 67k, and a new cold air intake installed. I pulled my ecu fuse for about an hour and a half, and cleaned my maf sensor with a sensor cleaner, worked awesome, my car was running sluggishly prior to the work being done, but now has great acceleration and great pedal response.
09-10-16, 01:18 PM
#30
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Perfectly put
Pulling Fuse? If you do reset ECU once a week, I would not remove the FUSE. Overtime the constant removing Fuse might loose the connection... Cost more in the long run replace Fuse holder. Battery terminal? Nothing to loose other than the memory.. How often do you listen to your radio?
New to CL and appreciate the help and acceptance!
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