Ecu re-learn procedure?

dms664 2019-10-24 17:29:06 +0500 #21

sir I am not expert into this but as per experts like @rajaatta and @capsat hi octane is not recommended in local driving for vitz

ghufranhaq (ghufranhaq) 2019-10-25 10:59:30 +0500 #22

Well a friend of recommended to use full tank of Hi-Octane after all the necessary tunning and injector cleaning and oil change etc. and then shift to normal petrol, I took his advice, will use normal petrol after this tank. Thanks for your advice and suggestions

dms664 2019-10-25 11:05:13 +0500 #23

sir no issues for one tank.
v power has special detergents n it ll clean ur fuel system
make it a habit to use full tank on long route off n on

ghufranhaq (ghufranhaq) 2019-10-25 12:07:09 +0500 #24

Sure i will, as i drive in main city only normally work and home which is just 13 KM up and down, was thinking to use a mix of normal and high octane like 60% normal and 40% high Octane.

ghufranhaq (ghufranhaq) 2019-10-26 12:05:56 +0500 #25

So i went to get my engine oil change from 20w50 to 5w30 the shop keeper asked me about the engine condition and after inspection, there was a lot of sludge in the engine although the car is driven 64k according to odo. the guy said to continue using 50w20 and using 5w30 would damage your engine. Also upon acceleration car is giving smoke. He said if i use 5w30 after 50 km the car will start giving smoke. Now i am confused here totally what to do. Expert and experienced advice needed brothers.

anon35615524 2019-10-26 13:36:18 +0500 #26

Bro I think the main reason / culprit for the creation of sludge is 20w-50, and most probably, I think the oil which had been kept pouring was pure mineral oil based.

If engine seals are perfect (and I am quite sure they will be), first pour engine flush (preferably from Liqui Moly) in your car's engine via engine oil filler cap. Start your car and let it idle for at least 15-25 minutes. Do not drive your car during this procedure. After 20-25 minutes, immediately remove complete engine oil along with oil filter.

Pour in fresh engine oil, and if you want best for bucks, I would suggest to go for Total Quartz 9000 Future Series 5w-30, and change oil + genuine, OEM, original oil filter after every 5-6,000 Kms, 6 months, or when oil becomes dirty (whichever comes first).

anon35615524 2019-10-26 13:37:30 +0500 #27

Originality of oil and oil filter (in fact everything) is a must for excellent health of your car.

anon35615524 2019-10-26 13:39:13 +0500 #28

I think, you may also require to use valve cleaners and fuel injectors cleaners too, if engine condition is not good. I fear, valves might also be dirty.

ghufranhaq (ghufranhaq) 2019-10-26 14:06:20 +0500 #29

Can i use the existing oil filter? As it was replaced recently by Toyota Eastern Motors, i have bought STP Engine Flush and will change the oil tomorrow. Seals are intact as i cannot see any oil residue in the engine bay! Oil is still golden just like new one. I will go for Total Quartz but i was thinking to use Liqui Moly 5w30. Would could be the reason for smoke on acceleration? Thanks for your suggestion Basit bhai!

anon35615524 2019-10-26 21:49:48 +0500 #30

Well, I would suggest that after engine flush and switching to new engine oil grade and brand, you must use a brand new engine oil filter.

Re-use of the oil filter, when engine flush has also been performed, may be strongly avoided. I do not know about the technicalities involved, but to me, it does not seem right.

OK. But I think, Liqui Moly had been better. Still, no problem. You can use it!

If you wanna go for expensive brands, then Valvoline, Amsoil, Kendall, etc. are much better than Liqui Moly, and these all (along with Total Quartz 9000 Future Series 5w-30) are fully synthetic. I think, Liqui Moly 5w-30 offered here in Pakistan is not fully synthetic. Have a look:

http://liquimolypakistan.com/special-tec-aa-5w-30/ and https://products.liqui-moly.com/special-tec-aa-5w-30-3.html

Well, experts, with more knowledge, and / or hands on experience can guide better. Tbh, I can not say anything about this phenomenon with surety, so instead of speculations, Its better for me that I do not comment.

I hope, this all helps. Thank you.

dms664 2019-10-26 22:13:05 +0500 #31

u r right i was considering liqui moly but skipped it as they have marketing gimmicks jargons of terms like synthesis technology. even the fully synthetic liqui moly 5w40 is api sm
in real lm 5w30 is not fully synthetic
i opted for total 9000 instead which is api sn latest tech
got it from drum which further decreased price.

ghufranhaq (ghufranhaq) 2019-10-27 00:33:52 +0500 #32

Thanks @basitali87 bhai and @dms664 i have bought Total Quartz 9000 from a Total Pump, Will use STP engine flush and Total Quartz 9000 and Genuine Toyota Oil Filter. Thanks for your suggestions,

dms664 2019-10-27 00:41:46 +0500 #33

engine flush is not recommended as advised by @Xulfiqar

syedfaizan1 (Faizan) 2020-10-13 04:35:01 +0500 #34

Lol i did blunder with my ECU right now, Removed the ECU Wires from the ECU to reset the ECU because i didnt had the Plas with me to remove battery terminal to Rese one Sensor Temp one. After doing that car start making Alot of Vibration on idle and RPM was on 0 lol

Then i bring the plas from home and unplugged the battery again then unplugged the ECU wire again from ECU and then its Fuses too.

then Connect everything back and then start the Car and left it for idle kept the RPM on 800 so it start learning the Speed. then after few mins its become normal and then i start the AC and Switch off the AC and this way in 30 mins Car is normal again

My Range was Disturbed so it comes to Normal by doing this, means before my Fuel Range shows 50 KM less now it was showing before 101 KM after Reset it comes back to normal like 150 right now so the Fuel Guage and range is accurate now