Jump to content
SAU Community

Recommended Posts

what if ur car is chipped or has camshaft modifications (my r32 gtr has lumpy idle due to cam work) will anything be affected in a bad way by this? I know it should be fine due 2 the ecu self learning etc ....

thnx

Hi DR32gtr,

Let's say you let your best mate take your car for a little blat, to say, the Northern Territory and back.

Lets say that he loved your car and would like to take it out again, and you let him.

You gladly give him the keys.

He returns them back to you within a few minutes and says.." she won't turn over, I accidently left the lights on all day and now she's flat!!".

Is this something you would really worry about, a flat battery? (there's your ECU reset, whether you like it or not!!)

You run more of a risk 'jump starting' your car to electronic oblivion than taking your battery off line for a while to re-set the ECU....don't you think.

In other words, it won't hurt anything!!!

Just try it, you may see some incredible innitial results, then again, you may actually let your mate take it for a blat!

All the best, ...let us know how you go!!

Mark SuperSpit.

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1335360
Share on other sites

  • 1 month later...
  • 3 months later...
I have a Blitz Access ECU in my R32 GTR. Will the same procedure apply when resetting it?

im sure the blits access computer is just a hacked standard computer, with all SPEED CUTS, andREV limits takin away...

its still a closed loop computer.. so it WONT HURT IT.

to be honest, resetting the stock computer after mods is a good thing for sure, BUT it is still got only a small band of tune.. like if you getting a full exhaust a pod, front mount, and winding more boost into it will still only be able to tune to its best ability, and its not that good.

and then again, getting Power FCs or full on aftermarkit computers cost ALOT..

So i spose it can be only a good thing to get a better tune via a quick reset.

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1615427
Share on other sites

  • 4 weeks later...

well guys here is my story....

a mate of mine told me to reset my computer and found it to be bad. I have an r32 gtr and the speed limiter has been removed so i'm guessing chipped ecu. Took the battery terminal off then connected it and the power dropped from 170 kw at wheels to 140 and now my beast cuts out every so often.

IMO GO AND PAY A FEW BUCKS AND GET A DYNO!!

So thats what i did.....went and got it dyno'd but unfortunately it still cuts out and only pumping out 168 KW at wheels.

MY ADVICE.....DO IT PROPERLY OR DON'T DO IT AT ALL!!!!!!

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1671118
Share on other sites

Anyone in brisbane with a LAPTOP and a spare 10 minutes and I'll reset their Nissan factory ECU properly. If you don't have the LAPTOP then it will cost you $5.

I have a PLMS consult at home and a Nissan Consult at work.

Edited by 3LIT3 FORS3
Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1671127
Share on other sites

I must also add that resetting your computer WILL NOT EFFECT YOUR PROGRAMMED MAPS.

Whether you had the ecu remapped or it is standard or whatever - resetting it will not erase that data. All it does is reset the learn procedure so that the computer can fine tune the base maps that are hard programmed into it and even then it only does it in fine increments to achieve the optimum running conditions.

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1671132
Share on other sites

  • 1 month later...

hey guys, Im also thinkin about reset my ECU, however would you guys know if it would affect my dual boost controlller, or my turbo timer? Also how do u disconnect the car alarm? When reseting the ECU by disconnecting the battery, does that mean to disconnect every cable connected to the battery and leave it for 24hr and continously pressing the brake pedal does anything on the car dash board indicates?

Im also a little paraiod about reseting my ECU because im scared if it would f*k up my car up...

Please help....

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1816267
Share on other sites

Hey mate, It wont change your turbo timer, or boost controler...If you have a bat back up on the car alarm, you should use the key supplied with alarm and turn it off so it wont go crazy!

all pressing the brake cable does is drains all the power out of the cars system.

cause the ECU need to be fully dead to reset its self...

No need to leave it over night.... just hold ya foot on the brake for a few min.. that will rip the power out of the system.

Because the ECU is a ROM it cant change its parameters. when you re conect the power it will only take 5 min of driving to get the ECU calabrated to a better tune..

Hope this helped your fears mate :D

kezza

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1816406
Share on other sites

hey kezza, thanks mate for the advice, however reseting the ECU will it decreases my current kw's or hp to the standard kw or hp? Also I was reading the forum that when disconnecting the battery I should disconnect the negative frist and leave the positive connected? Is that true or otherwise it will cause drama's?

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1816472
Share on other sites

NaStY_r33gtst-

Yeh man disconnect the negative terminal first and reconnect it last. I think this is just for your own safety so you never touch the positive when it's live?

As someone has said,

"resetting your computer WILL NOT EFFECT YOUR PROGRAMMED MAPS.

Whether you had the ecu remapped or it is standard or whatever - resetting it will not erase that data. All it does is reset the learn procedure so that the computer can fine tune the base maps that are hard programmed into it and even then it only does it in fine increments to achieve the optimum running conditions."

Just reset it and then drive around how you like and you may even find your car seems to run slightly better. I can't see the car going any worse because of it?

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1816521
Share on other sites

hey, so i dont disconnect the positive side of the battery? just onli the negative. Umm also i got a standard ecu however i dont know if i had it tune or not coz i just brought the car. Will it decrease my boost psi or increase if i reset the ECU?

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-1816525
Share on other sites

  • 11 months later...

i just have done this,left it for 3 hours, and of course pressed the brake a couple of times, you can feel it get heavier :(.. my idel looks a little smoother, and i feel it runs alot more smooth now, i did have 3 mods in there without reseting, so feels like it helped a bit..

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-2754574
Share on other sites

  • 2 months later...
hey, so i dont disconnect the positive side of the battery? just onli the negative. Umm also i got a standard ecu however i dont know if i had it tune or not coz i just brought the car. Will it decrease my boost psi or increase if i reset the ECU?

i think he means disconnect the neg FIRST, then the pos, 24 hours later, connect the pos then finally the NEG

sorry to bump this thread, but im gonna try it and ill let u guys know how it went

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-2932231
Share on other sites

  • 4 months later...

After having a chat to my mechanic today about this he said that this could be done also by disconnecting the main fuse in the front?

I personally couldn't get the thing to work by using the diagnostic plug and getting to the battery in my car is very very painful with all the audio gear in my boot.

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-3205582
Share on other sites

  • 4 years later...

Hey I'm wanting to reset my ecu it is just a stock one I believe but it has got a G readdy E manage that can be plugged in and also has a rev/speed meter hooked up resetting the ecu will this affects rev/speed meter or the e manage next time I got to plug it in??

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-6364909
Share on other sites

  • 10 months later...

Just posting to eliminate any fears, and to clarify things for any noobs like myself..

When I reset my ecu for the first time it was a huge success.

I have R33 gtst s2. with standard ecu, aftermarket alarm, turbo timer, FMIC, exhaust, stereo, and thats just about it..

I disarmed/unlocked the car. (did not disconnect any alarm wires or anything)

Then disconnected the negative terminal from the battery.

pumped and held brake on for a minute. turned light switch on/off a bit, to use up residual power. Then left sit for half hour.

Reconnected battery, checked clock to see if reset, it was now wrong time. 1 o'clock which i thought was weird... My stereo had not lost its pre-programed radio stations, but it had switched from USB input to radio.. also weird....

Then tightened terminal connection after turning everything off. While tightening up terminal the timer turned itself on along with the radio. last weird thing....

I then started the car and noticed the standing idle had increased from 800ish to 1100ish, as i had been told it would if reset was successful.

Then took it for a low paced casual drive through town (basically the softest it's ever going to be driven, like my gf drives it) out to an unused straight road..

I then exercised the throttle through the rev range. Held at about 3k a few seconds then off, slowly up to 6k then down, etc. (not really sure the best method, but have read to to this) Then basically ran a drag race up to 5th gear twice. Then had a bit of a spirited drive up and down the gears.

Then cruised back to town sitting on about 100kph. followed by another slow drive through town to fill up tank then home.

The drive seemed to have more low rev power and be more responsive. The next test is to see if it has improved overall fuel economy.

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-6801048
Share on other sites

  • 5 months later...

Just posting to eliminate any fears, and to clarify things for any noobs like myself..

When I reset my ecu for the first time it was a huge success.

I have R33 gtst s2. with standard ecu, aftermarket alarm, turbo timer, FMIC, exhaust, stereo, and thats just about it..

I disarmed/unlocked the car. (did not disconnect any alarm wires or anything)

Then disconnected the negative terminal from the battery.

pumped and held brake on for a minute. turned light switch on/off a bit, to use up residual power. Then left sit for half hour.

Reconnected battery, checked clock to see if reset, it was now wrong time. 1 o'clock which i thought was weird... My stereo had not lost its pre-programed radio stations, but it had switched from USB input to radio.. also weird....

Then tightened terminal connection after turning everything off. While tightening up terminal the timer turned itself on along with the radio. last weird thing....

I then started the car and noticed the standing idle had increased from 800ish to 1100ish, as i had been told it would if reset was successful.

Then took it for a low paced casual drive through town (basically the softest it's ever going to be driven, like my gf drives it) out to an unused straight road..

I then exercised the throttle through the rev range. Held at about 3k a few seconds then off, slowly up to 6k then down, etc. (not really sure the best method, but have read to to this) Then basically ran a drag race up to 5th gear twice. Then had a bit of a spirited drive up and down the gears.

Then cruised back to town sitting on about 100kph. followed by another slow drive through town to fill up tank then home.

The drive seemed to have more low rev power and be more responsive. The next test is to see if it has improved overall fuel economy.

I tried the reset using the paper clip method and now my car won't pump fuel to the engine. If I disconnect the battery and pump the brake etc will it reset the ecu and fix this problem?

Link to comment
https://www.sau.com.au/forums/topic/13711-ecu-reset/page/3/#findComment-7008520
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Did this end up working? Did you take some pictures?
    • And finally, the front lower mount. It was doubly weird. Firstly, the lower mount is held in with a bracket that has 3 bolts (it also acts as the steering lock stop), and then a nut on the shock lower mount itself. So, remove the 3x 14mm head bolts , then the 17mm nut that holds the shock in. From there, you can't actually remove the shock from the lower mount bolt (took me a while to work that out....) Sadly I don't have a pic of the other side, but the swaybar mounts to the same bolt that holds the shock in. You need to push that swaybar mount/bolt back so the shock can be pulled out past the lower control arm.  In this pic you can see the bolt partly pushed back, but it had to go further than that to release the shock. Once the shock is out, putting the new one in is "reverse of disassembly". Put the top of the shock through at least one hole and put a nut on loosely to hold it in place. Put the lower end in place and push the swaybar mount / shock bolt back in place, then loosely attach the other 2 top nuts. Bolt the bracket back in place with the 14mm head bolts and finally put the nut onto the lower bolt. Done....you have new suspension on your v37!
    • And now to the front.  No pics of the 3 nuts holding the front struts on, they are easy to spot. Undo 2 and leave the closest one on loosely. Underneath we have to deal with the wiring again, but this time its worse because the plug is behind the guard liner. You'll have to decide how much of the guard liner to remove, I undid the lower liner's top, inside and lower clips, but didn't pull it full off the guard. Same issue undoing the plug as at the rear, you need to firmly push the release clip from below while equally firmly gripping the plug body and pulling it out of  the socket. I used my fancy electrical disconnect pliers to get in there There is also one clip for the wiring, unlike at the rear I could not get behind it so just had to lever it up and out.....not in great condition to re-use in future.
    • Onto the rear lower shock mount. It's worth starting with a decent degrease to remove 10+ years of road grime, and perhaps also spray a penetrating oil on the shock lower nut. Don't forget to include the shock wiring and plug in the clean.... Deal with the wiring first; you need to release 2 clips where the wiring goes into the bracket (use long nose pliers behind the bracket to compress the clip so you can reuse it), and the rubber mount slides out, then release the plug.  I found it very hard to unplug, from underneath you can compress the tab with a screwdriver or similar, and gently but firmly pull the plug out of the socket (regular pliers may help but don't put too much pressure on the plastic. The lower mount is straightforward, 17mm nut and you can pull the shock out. As I wasn't putting a standard shock back in, I gave the car side wiring socket a generous gob of dialectric grease to keep crap out in the future. Putting the new shock in is straightforward, feed it into at least 1 of the bolt holes at the top and reach around to put a nut on it to hold it up. Then put on the other 2 top nuts loosely and put the shock onto the lower mounting bolt (you may need to lift the hub a little if the new shock is shorter). Tighten the lower nut and 3 upper nuts and you are done. In my case the BC Racing shocks came assembled for the fronts, but the rears needed to re-use the factory strut tops. For that you need spring compressors to take the pressure off the top nut (they are compressed enough when the spring can move between the top and bottom spring seats. Then a 17mm ring spanner to undo the nut while using an 8mm open spanner to stop the shaft turning (or, if you are really lucky you might get it off with a rattle gun).
    • You will now be able to lift the parcel shelf trim enough to get to the shock cover bolts; if you need to full remove the parcel shelf trim for some reason you also remove the escutcheons around the rear seat release and you will have to unplug the high stop light wiring from the boot. Next up is removal of the bracket; 6 nuts and a bolt Good news, you've finally got to the strut top! Remove the dust cover and the 3 shock mount nuts (perhaps leave 1 on lightly for now....) Same on the other side, but easier now you've done it all before
×
×
  • Create New...