Basic ECM Resetting

a4_attitude · 8th March 2006, 12:47

hey dom!
that was really informative please put some light is this is possible if i try with Sera as am planning to put K&N next week ,, should I go for it??
cheers
W.A

shrivz · 15th April 2006, 16:14

hey dom.. nice info u giving us... thnx...

wanted to ask u some stuff...
Im using a 2000 Baleno Sedan...
I've heard that the new Baleno's have more advanced ECUs (32bit) as per the BSIII norms...

1. I would like to know if i could reprogram my ECU for maximum performance?
2. If yes, which connectors do I use to make the cable? and from where can i get the software?
3. If not, how much would it approximately cost to upgrade my ECU?

thnx dom... ur information is really useful...

aZa · 15th April 2006, 18:39

Gr8 info DOM !!!

Recently my santro use to hyper ventilate when i used to switch on the AC. like the engine used revv up whenever the compressor would switch on, i was worried as all expenses go from my pocket and the car was nearing its third service so i took it to the Hyundai dealer in noida for the third service. Now this dealer is really sh|tty in all aspects but since its the only one in noida ... so anyway when i got the car back the problem was still there so before taking the delivery i showed it to the mechanic there he got a engine scanner (PDA sorta device) and plugged it into a serial port sorta jack near the bonnet lever and then i saw "Uploading" on the screen of the device. he didn't touch a screw neither did he open the bonnet and then AC was running as smooth as ever.

I was just wondering if there is a Santro aftermarket performance ECU around ?

is there such a thing ?

sage · 11th June 2007, 09:31

sorry to bump this thread back up but i just wanted to say that with regards to resetting the ECU, for my optra, i was told to get the ECU to learn by performing it this way...
start, idle for 10sec, shut. Repeat.
then start, idle for 10sec, then put it in D for 10sec,then N and finally shut.

It is a little longer, but is there such a thing? for my previious car, i did what Dom said and it worked fine...

sage · 11th June 2007, 09:58

sorry... these were the steps...

[SIZE=4]Idle Learn Procedure [/SIZE]

Whenever the battery cables, the engine control module (ECM), or the ECM fuse is disconnected or replaced, the following idle learn procedure must be performed:

Turn the ignition ON for 5 seconds.
Turn the ignition OFF for 5 seconds.
Turn the ignition ON for 5 seconds.
Start the engine in park/neutral.
Allow the engine to run until the engine coolant is above 185° F (85°C ).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in D (drive).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
Turn the ignition OFF. The idle learn procedure is complete.

ashish.shenoy · 31st October 2007, 17:07

Hi Dominic,

i have been facing a lot of probs with my Honda City's Type 2 ecm,

the idle does not respond and sometimes it even falls below 200, specially when the A/C turns on,

i accidently met a guy in Mumbai who flashed the ROM but it still gives the same problem,

i do much hopping between Mumbai and Pune, the car gives me a variation in average starting from 9km/ltr to 18km/ltr at crusing speed(120km/ltr),

Can you please suggest something on this,

Absar · 31st October 2007, 21:07

Quote:

Originally Posted by aZa

...i showed it to the mechanic there he got a engine scanner (PDA sorta device) and plugged it into a serial port sorta jack near the bonnet lever and then i saw "Uploading" on the screen of the device. he didn't touch a screw neither did he open the bonnet

Most probably he'd connected the engine scanner to the OBD port.

Quote:

Originally Posted by sage

sorry to bump this thread back up but i just wanted to say that with regards to resetting the ECU, for my optra, i was told to get the ECU to learn by performing it this way...these were the steps...

[SIZE=4]Idle Learn Procedure [/SIZE]

Whenever the battery cables, the engine control module (ECM), or the ECM fuse is disconnected or replaced, the following idle learn procedure must be performed:

Turn the ignition ON for 5 seconds.
Turn the ignition OFF for 5 seconds.
Turn the ignition ON for 5 seconds.
Start the engine in park/neutral.
Allow the engine to run until the engine coolant is above 185° F (85°C ).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in D (drive).
Turn the A/C ON for 10 seconds, if equipped.
Turn the A/C OFF for 10 seconds, if equipped.
Turn the ignition OFF. The idle learn procedure is complete.

I haven't heard of this. But sounds advanced. May be a proper ECM calibration, like how after resetting the ECM, we drive sedately or fast to calibrate it. This sounds like a default method. Shall try this sometime. Thanks for posting this tho!

cya
A

dmitri · 1st November 2007, 01:09

Quote:

Originally Posted by ashish.shenoy

Hi Dominic,

i have been facing a lot of probs with my Honda City's Type 2 ecm,

the idle does not respond and sometimes it even falls below 200, specially when the A/C turns on,

i accidently met a guy in Mumbai who flashed the ROM but it still gives the same problem,

i do much hopping between Mumbai and Pune, the car gives me a variation in average starting from 9km/ltr to 18km/ltr at crusing speed(120km/ltr),

Can you please suggest something on this,

Have you tried cleaning the throttle body?

Randhawa · 1st November 2007, 02:06

All the cars with OBD II are self learning ECU's. I have experienced when I give my car some beans then it performs very well on the rollers. It adapts from your driving style. If you drive like a nany then your car's performance would be slugish, you might feel your car is slow. When you reset your ecu, it changes the stored value and might idle a bit higher for a moment but if you wack it then it will get the new values and perform at its best. Increase in air does not means it will suck in loads of fuel as it will cause the lambda to suffer. It adjusts the timing and still delivers good mpg but it will be registering increase in air only when you are wacking the car and at that time you do need more fuel. If its feeding more fuel which isint getting burnt as lambda would register with ecu then the ecu will optimize the timing,fuel accordingly to deliver the best performance.

Thats the one of the downside of OBD II which cant cope up with increase in fuel and air as it has set parameters into it and the need to upgrade to standalone ECU's or piggy back ECU to control ignition,timing and fuel. Hence more easy to mod a OBD I car rather then OBD II

rohan_fonseca · 1st November 2007, 09:12

How can we distinguish between obdI and obdII cars?

ashish.shenoy · 1st November 2007, 10:32

yes the whole of throttle body has beeb cleaned along with the sensors

pawan · 1st November 2007, 12:09

Quote:

Originally Posted by rohan_fonseca

How can we distinguish between obdI and obdII cars?

by the shape a obd1 has a rectangular shape where as the obd2 goes in wards at the top .

Randhawa · 1st November 2007, 19:06

I think the pre 96 models were OBD 1 and post OBD II but thats the case in europe so not sure about the Asia.

malcolm · 17th November 2007, 11:39

does any one sell ecu chips for honda vtec's
is it advisable to get a mod chip and does it make any difference or harm the engine life

raajks · 17th November 2007, 12:19

http://www.team-bhp.com/forum/members/rdkarthik.html

I am sure Karthik could help you on this.

::..TESTIMONIALS..::

8th March 2006, 12:47	#31
a4_attitude BHPian Join Date: Sep 2005 Location: New Delhi Posts: 508 Thanked: 101 Times View My Garage	hey dom! that was really informative please put some light is this is possible if i try with Sera as am planning to put K&N next week ,, should I go for it?? cheers W.A
	() Thanks

15th April 2006, 16:14	#32
shrivz BHPian Join Date: Jan 2006 Location: Pune, MH12 Posts: 604 Thanked: 96 Times View My Garage	hey dom.. nice info u giving us... thnx... wanted to ask u some stuff... Im using a 2000 Baleno Sedan... I've heard that the new Baleno's have more advanced ECUs (32bit) as per the BSIII norms... 1. I would like to know if i could reprogram my ECU for maximum performance? 2. If yes, which connectors do I use to make the cable? and from where can i get the software? 3. If not, how much would it approximately cost to upgrade my ECU? thnx dom... ur information is really useful...
	() Thanks

15th April 2006, 18:39	#33
aZa Senior - BHPian Join Date: Mar 2006 Location: Noida / Delhi Posts: 1,595 Thanked: 21 Times View My Garage	Gr8 info DOM !!! Recently my santro use to hyper ventilate when i used to switch on the AC. like the engine used revv up whenever the compressor would switch on, i was worried as all expenses go from my pocket and the car was nearing its third service so i took it to the Hyundai dealer in noida for the third service. Now this dealer is really sh\|tty in all aspects but since its the only one in noida ... so anyway when i got the car back the problem was still there so before taking the delivery i showed it to the mechanic there he got a engine scanner (PDA sorta device) and plugged it into a serial port sorta jack near the bonnet lever and then i saw "Uploading" on the screen of the device. he didn't touch a screw neither did he open the bonnet and then AC was running as smooth as ever. I was just wondering if there is a Santro aftermarket performance ECU around ? is there such a thing ?
	() Thanks

11th June 2007, 09:31	#34
sage Newbie Join Date: May 2006 Location: Kuala lumpur Posts: 12 Thanked: 0 Times	sorry to bump this thread back up but i just wanted to say that with regards to resetting the ECU, for my optra, i was told to get the ECU to learn by performing it this way... start, idle for 10sec, shut. Repeat. then start, idle for 10sec, then put it in D for 10sec,then N and finally shut. It is a little longer, but is there such a thing? for my previious car, i did what Dom said and it worked fine...
	() Thanks

11th June 2007, 09:58	#35
sage Newbie Join Date: May 2006 Location: Kuala lumpur Posts: 12 Thanked: 0 Times	sorry... these were the steps... [SIZE=4]Idle Learn Procedure [/SIZE] Whenever the battery cables, the engine control module (ECM), or the ECM fuse is disconnected or replaced, the following idle learn procedure must be performed: Turn the ignition ON for 5 seconds. Turn the ignition OFF for 5 seconds. Turn the ignition ON for 5 seconds. Start the engine in park/neutral. Allow the engine to run until the engine coolant is above 185° F (85°C ). Turn the A/C ON for 10 seconds, if equipped. Turn the A/C OFF for 10 seconds, if equipped. If the vehicle is equipped with an automatic transaxle, apply the parking brake. While pressing the brake pedal, place the transaxle in D (drive). Turn the A/C ON for 10 seconds, if equipped. Turn the A/C OFF for 10 seconds, if equipped. Turn the ignition OFF. The idle learn procedure is complete.
	() Thanks

31st October 2007, 17:07	#36
ashish.shenoy Newbie Join Date: Oct 2007 Location: Pune Posts: 21 Thanked: 19 Times	ECM troubled Hi Dominic, i have been facing a lot of probs with my Honda City's Type 2 ecm, the idle does not respond and sometimes it even falls below 200, specially when the A/C turns on, i accidently met a guy in Mumbai who flashed the ROM but it still gives the same problem, i do much hopping between Mumbai and Pune, the car gives me a variation in average starting from 9km/ltr to 18km/ltr at crusing speed(120km/ltr), Can you please suggest something on this,
	() Thanks

1st November 2007, 02:06	#39
Randhawa Senior - BHPian Join Date: Oct 2007 Location: Brighton Posts: 1,192 Thanked: 355 Times	All the cars with OBD II are self learning ECU's. I have experienced when I give my car some beans then it performs very well on the rollers. It adapts from your driving style. If you drive like a nany then your car's performance would be slugish, you might feel your car is slow. When you reset your ecu, it changes the stored value and might idle a bit higher for a moment but if you wack it then it will get the new values and perform at its best. Increase in air does not means it will suck in loads of fuel as it will cause the lambda to suffer. It adjusts the timing and still delivers good mpg but it will be registering increase in air only when you are wacking the car and at that time you do need more fuel. If its feeding more fuel which isint getting burnt as lambda would register with ecu then the ecu will optimize the timing,fuel accordingly to deliver the best performance. Thats the one of the downside of OBD II which cant cope up with increase in fuel and air as it has set parameters into it and the need to upgrade to standalone ECU's or piggy back ECU to control ignition,timing and fuel. Hence more easy to mod a OBD I car rather then OBD II
	() Thanks

1st November 2007, 09:12	#40
rohan_fonseca BHPian Join Date: Jan 2006 Location: Panaji Posts: 984 Thanked: 8 Times View My Garage	How can we distinguish between obdI and obdII cars?
	() Thanks

1st November 2007, 10:32	#41
ashish.shenoy Newbie Join Date: Oct 2007 Location: Pune Posts: 21 Thanked: 19 Times	yes the whole of throttle body has beeb cleaned along with the sensors
	() Thanks

1st November 2007, 19:06	#43
Randhawa Senior - BHPian Join Date: Oct 2007 Location: Brighton Posts: 1,192 Thanked: 355 Times	I think the pre 96 models were OBD 1 and post OBD II but thats the case in europe so not sure about the Asia.
	() Thanks

17th November 2007, 11:39	#44
malcolm BHPian Join Date: Aug 2005 Location: m Posts: 78 Thanked: 5 Times	does any one sell ecu chips for honda vtec's is it advisable to get a mod chip and does it make any difference or harm the engine life
	() Thanks

17th November 2007, 12:19	#45
raajks BHPian Join Date: Aug 2005 Location: BLR Posts: 578 Thanked: 119 Times View My Garage	http://www.team-bhp.com/forum/members/rdkarthik.html I am sure Karthik could help you on this. ::..TESTIMONIALS..::
	() Thanks