Jump to content
SAU Community

Recommended Posts

Originally posted by GTR-80Y

i have also heard that to properly reset the ECU you need a proper diagnostic tool.

The proper diagnostic tool is a wire paper clip

The R33 method is to open the fuse pannel under the dash

you will see a grey connector pointing downwards, pick the two wires on their own in the plug (the ones closesed to you) turn on the ign put the paper clip in so it shorts the two wires for around two seconds (this puts the ecu in diag mode) remove paper clip.

the chk eng light on the dash will start flashing a set of codes turn the ign off & on again the ecu is now reset

benifits: no reprograming the radio or clock & no spanners sparking on the rear of the parcel shelf (killing the ecu's).

Regards DAMQIK

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-50792
Share on other sites

Originally posted by DAMQIK GTS-T

The proper diagnostic tool is a wire paper clip

The R33 method is to open the fuse pannel under the dash

you will see a grey connector pointing downwards, pick the two wires on their own in the plug (the ones closesed to you) turn on the ign put the paper clip in so it shorts the two wires for around two seconds (this puts the ecu in diag mode) remove paper clip.

the chk eng light on the dash will start flashing a set of codes turn the ign off & on again the ecu is now reset  

benifits: no reprograming the radio or clock & no spanners sparking on the rear of the parcel shelf (killing the ecu's).

Regards DAMQIK

That sounds _very_ dodgey although it's probably right. I've been told that the ECU has a built in battery (button type) that even after disconnecting the battery will retain the ECU setup. So the only way is to flatten/remove that button battery or to short the ECU as described above. DAMQIK can you explain what the wires are and how it works?

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-50798
Share on other sites

Originally posted by Grim

DAMQIK can you explain what the wires are and how it works?

Yes, one wire is an earth and the other a signal (to put the ecu in diags mode)

it dose the same as removing the passanger kick trim ,unbolting the ecu, turning it around and turning the little knob arround clockwise all the way with a fine screwdriver.

which BTW may be easyer if you are unsure about using a paper clip.

DAMQIK

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-52710
Share on other sites

im too scared to do the paper clip one as i know what will end up happening... i'll electrocute myself! :P:D

now is it the same for R32/33 or are they diff?

***EDIT

also... once u turned the nob or whatever around do u have to turn it back and then bolt it back on?

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-52772
Share on other sites

Originally posted by inark

now is it the same for R32/33 or are they diff?

also... once u turned the nob or whatever around do u have to turn it back and then bolt it back on?

The r32 only has the knob I dont think it has a plug for a paper clip to go into.

the knob needs to be in the diag position for the whole time you need it to show fault code's

remember to turn off ign before setting the knob back into its original position.

DAMQIK

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-53333
Share on other sites

Originally posted by ex-static

Nope, I d/c'd the battery.. stomped on the brake a few times.. reconnected the battery, took her down the road until I hit the speed limiter.. 3 times :)

I thought that should do the trick :(

I was just hoping it didnt reset my safc settings.. doesnt seem to have :)

I really don't think it would have done too much.....the proper diagnostic tool is needed and after the reset there are certain driving processes it needs to help the computer 'learn'.

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-53513
Share on other sites

hey DAMQIK, can u confirm that the following diagram is correct:

|O|OO|OO|OO|

|X|XO|OO|OO|

the pins marked "X" are the ones to put the paper clip through? coz i tried doing that and couldn't put it into diagnostic mode. the bottom left marked X were free, no wires were in them. some of the others had wires in them (for the alarm i fink).

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-53658
Share on other sites

Guys! Guys!

The R33 is a little more simpler. Now, I may not be 100% on all this as I haven't done it for a while...

Okay.

Remove the kick panel on the passenger side (below the glove box). You'll reveal the computer.

Take the computer out very gentlely (its not hard, becareful of the looms and wires).

On one end of the computer you'll see a white switch, circle shape, get a small flat head screw driver.

Turn the reds on at the ignition.

turn the circlular switch oppositelock, again gently. look at the dash board, you'll see (on a series 1 gts-t) the check engine light flashing. If your getting 5 slow and 5 fast repeated flashes (it will loop) the system and its sensors are all okay.

You'll need the codes if your getting anything other then this...you can get them on the net...meggala's site might be a try there.

turn the switch back to its original postion. You'done a basica computer reading check AND reset the computer.

I would only do this if you can spend at least an hour driving on a highway so the computer can learn some good open running maps...no good doing it for 5mins......

cheers...just check on the process of turning the switch, it maybe turn switch, reds, turn back to get the result.......as long as you return it to the oringinal postion the car should be fine.

ANDREW

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-53754
Share on other sites

Originally posted by _turtle_

hey DAMQIK, can u confirm that the following diagram is correct:

|O|OO|OO|OO|

|X|XO|OO|OO|

the pins marked "X" are the ones to put the paper clip through?YES if X's are towards the rear of the car

coz i tried doing that and couldn't put it into diagnostic mode. ? DID U TURN ON IGN PUT CLIP IN FOR 3 SECONDS AND THEN REMOVE CLIP?

the bottom left marked X were free, no wires were in them. ?the ones you want will have wires in them

some of the others had wires in them (for the alarm i fink) NO THERE FOR THE SEND/RECIVE FOR A DIAG COMPUTER.

To show you I pulled the plug out of its holder

The pin's of the plug you want are closest to you, on your left if you are facing toward the front of the car,

as in the picture below SORRY its not in focus.

DAMQIK

diag.jpg

Link to comment
https://www.sau.com.au/forums/topic/2879-resestting-ecu/#findComment-53824
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

    • Even more fun, leave all the ADAS stuff plugged in, but in different locations, hopefully avoid any codes!   And honestly, all these new cars with their weird electronics. Pull all the electronics out Duncan, and just shove an aftermarket ECU and if needed a trans controller in, along with a PDM. Make it run basic but race car styled!
    • To follow up a question from earlier too since I had the front bar off again (fking!) This is what is between the bumper and the drivers side wheel And this is the navigator side, only one thing but its a biggy! So basically....no putting coolers in the wheel arches without a lot of moving other stuff. Assuming I move to properly race prepping this car I'll take that job on and see how the computers respond to removing a whole bunch of ADAS modules
    • So I prepped the car for another track day on Wednesday (will be interesting to see coolant temps post flushing out and the larger reservoir, with a forecast of 3-14 being 20o cooler than last time I took it out). Couple of things to mention; since I am just driving the car and not taking a support vehicle, I took the rear seats out and just loaded the back up Team Trackday style. Look at all that space! To cover off removing the rear seat....it is weird (note the hybrid is probably different because it wouldn't have folding rear seats) Basically, you remove the lower seat base, very similar to a r series but it is a clip that pulls forward to release the base rather than it being bolted down. Easy Then, you need to remove the side section of the rear seat on each side. There is a 14mm head nut at the bottom of the side piece, the it slides upwards off a hook at the top to release; you also need to unhook the seatbelt from the loop at the top. Then the centre piece is weird. You need to release/fold the seats forward with the tab in the boot on each side From there, there are 2,x12mm headed bolts holding the rear of each seat to the folding bracket, under the trim between the rear seat and the boot (4x christmas tree clips there, they suck). The seat is out but you can see where the bolts attach to the bracket
    • As discussed in the previous post, the bushes in the 110 needed replacing. I took this opportunity to replace the castor bushes, the front lower control arm, lower the car and get the alignment dialled in with new tyres. I took it down to Alignment Motorsports on the GC to get this work done and also get more out of the Shockworks as I felt like I wasn't getting the full use out of them.  To cut a very long story short, it ended up being the case the passenger side castor arm wouldn't accept the brand new bush as the sleeve had worn badly enough to the point you could push the new bush in by hand and completely through. Trying a pair of TRD bushes didn't fix the issue either (I had originally gone with Hardrace bushes). We needed to urgently source another castor arm, and thankfully this was sourced and the guys at the shop worked on my car until 7pm on a Saturday to get everything done. The car rides a lot nicer now with the suspension dialled in properly. Lowered the car a little as well to suit the lower profile front tyres, and just bring the car down generally. Eternally thankful for the guys down at the shop to get the car sorted, we both pulled big favours from our contacts to get it done on the Saturday.  Also plugged in the new Stedi foglights into the S15, and even from a quick test in the garage I'm keen to see how they look out on the road. I had some concerns about the length of the LED body and whether it'd fit in the foglight housing but it's fine.  I've got a small window coming up next month where I'll likely get a little paint work done on the 110 to remove the rear wing, add a boot wing and roof wing, get the side skirt fixed up and colour match the little panel on the tail lights so that I can install some badges that I've kept in storage. I'm also tempted to put in a new pair of headlights on the 110.  Until then, here's some more pictures from Easter this year. 
    • I would put a fuel pressure gauge between the filter and the fuel rail, see if it's maintaining good fuel pressure at idle going up to the point when it stalls. Do you see any strange behavior in commanded fuel leading up to the point when it stalls? You might have to start going through the service manual and doing a long list of sensor tests if it's not the fuel system for whatever reason.
×
×
  • Create New...