разница в номере мозгов на 101 сильвер акпп

[Zarubin]

89661-12780 и 89661-1а780 ???

Знает ли кто в чем реально разница?

[Дед Мазай]

Тут как то я недавно сталкивался с этим вопросом.
короч там на разные автоматы они или а240е или а245е. На одном (первое поколение 4аге сильвер ) есть мудрый центробежник а на более свежих его нет ну или перенесен в другое место. Да забыл я чета. пару месяцев назад с этим вопросом протрахаллсо.
но вообще я видел 4 вида таких разных мозгов.
именно на сильвер.
экспериментировал и ставил даже блэковую коробу а246е на них но работать корректно она не захотела.
Да пошел он этот автомат.
Коробку поставлю да и все.

[in-digo]

на коробках мозги бывают с разными номерами, ранние версии - все циферки, а поздние - с буквой А

[BadCRC]

Мозги должны нормально воспринимать замену 245й на 246ю коробку, если читать tcm-клуб. Там был пример такого свапа АТ, работало заипись, следовательно, мозги схавали. А вот насчет мозгов, заточенных под 240ю коробку, написано, что хз, ибо они немного отличаются от 245/6х.

[levin101413nae]

4A-G 20v AFM "silvertop" ECU year 91 vs. 93
This page compares ECUs between year 91 and 93 of the Toyota engine from the car model Corolla (regular, Levin or Trueno) AE101 which is a 4 cylinders 1.6 liters Twin Cam 20 Valves 4 throttles with VVT running on Vane's Air Flow Meter (AFM L-Jetronic) aka "Silvertop".
91 93
91.7.8 93.6.10
91 _ _ - _ _ 4 _ 93 _ _ - _ _ 4 _
yellow sticker on case red sticker on case
89661-12770 89661-1A190
175000-4622 on sticker 175000-5761 on sticker
175031-4621 on circuit 175031-5761 on circuit
2F 4A
462 576
1 2
The date is taken from the case with 4621 or 5761 respectively, while inside the circuit board it prints: -
93 - 4
So, what does the 4 mean? And what are the empty boxes after 91 or 93 and before and after 4???
4th quarter of the year? This cannot be as the year 91 unit also have 4, while 91.7.8 (7 or 8) hardly fits into last quarter of the year.
93.6.10 does not really tell if it is June or October??? :( better find out from a Japanese friend what Japanese prefer to use, year month day or year day month hahahahahha
Another ECU was found and the date system that Japanese manufacturers are using is year month day. So 93.6.10 is 93 June 10th
What's the difference between 12770 vs. 1A190 or 2F vs, 4A or 576 vs. 462??? Hhhhmmmm too many questions.

Anyway this information is somewhat important because on the 20vAFM official circuit chart it says there are a total of 11 revisions of ECU. All just for what is known as "one" engine.

1. electrical circuit applicable for ECU / wiring looms production before ~ 93.5
2. electrical circuit applicable for ECU / wiring looms after 93.5 ~
3. specific to manual transmission before 93.5
4. EXCEPT before 93.5 manual transmission
5. specific to after 93.5 M/T
6. specific to after 93.5 A/T
7. EXCEPT after 93.5 M/T
8. Sedan
9. Coupe
10. Coupe, Analog Meter
11. Coupe, Digital Meter
Items 8, 9, 10, 11 is translated by nickname wfhan a forum member in www.zerotohundred.com
Many thanks to wfhan and credits goes to him :)
wfhan warns that his Japanese is around 50%, hence those translation should not be taken as 100%.

This is used when reading the universal circuit with 11 different variant overlapping each other. Please note.
Perhaps now it explains why some people replaces the ECU several times but still screw up :(. Some pin outs have been shifted to other locations and causes some form of error of worst short circuit.
Now, this is the crucial bit to the long winded story above. Zul a fellow enthusiast found out that the VVT on his 20vAFM does not engage at 4,400 rpm. Instead it engages "WHENEVER" the throttle is radically depressed. i.e. when the power is required, estimated by the user's throttle position.
Come to think of this, this is great. This is like 1/2 VVT-i
Anyone who wishes to find out if his / her 20vAFM can do so simply by sticking a 12v+ DC light bulb onto the VVT solenoid wires and watch if the light comes on / off at what rpm point / at what throttle.
Please note that sticking the light bulb to the ECU output will make the light bulb turn on immediately after starting the car. It appears that 20vAFM may be using a reverse signal method to engage the VVT or it may be using a trigger relay.
I didn't find out mine, cause of worries that the indication of 93.5 above means something like: -
1. before 93.5 VVT engage at 4,400 rpm (not according to throttle versus rpm)
2. after 93.5 VVT engage according to throttle vs. rpm) like: -

picture taken from www.club4ag.com - credits goes to them
Although 93.6.10 is June 93 which is after the word "93.5~" but I'm still chicken, so I'll face the truth later

Still, as of / during writing. I finally took up my DMM and measured it stationary. ZERO volt. No signal to the VVT solenoid. This is bad news :( All I can hope for is that it needs to sense some speed. God bless for next measurement

Perhaps everyone has been wrong all this while thinking early VVT engages around 4,400 rpm. Perhaps it has always been TPS vs. RPM???

Still, more to find out.

Below is a pin outs comparison
91 93 Phil 91 93 Phil 91 93 Phil
1 +B1 +B1 +B1 1 THE nil THE 1 ELS2 CF ELS2
2 BATT BATT BATT 2 VS VS VS 2 STA STA STA
3 CCO CCO CCO 3 THA THA THA 3 IGF IGF IGF
4 ECO FC nil 4 THW THW THW 4 NE NE NE
5 AC2 AC2 AC2 5 nil nil 5 G1 G1 G2
6 ACT ACT A/C 6 OX OX OX 6 nil ECO
7 B+ +B +B 7 TE2 TE2 TE2 7 VVT VVT VVT
8 W W W 8 VF VF VF 8 ISC ISC ISC
9 EGW EGW EGW 9 E2 E2 E2 9 RSC RSC
10 AC1 AC1 AC1 10 VTA VTA VTA 10 RSO RSO
11 SP1 SP1 SPD 11 VC VCC VC 11 #3 #3 #3
12 ELS1 ELS ELS1 12 IDL IDL IDL 12 #1 #1 #1
13 OX+ OX+ OXL1 13 E01 E01 E01
14 KNK KNK KNK 14 HT HT HTR
15 TE1 TE1 TE1 15 nil nil
16 nil EAF 16 EVP EVP IPV
17 G- G- G-
18 G2 G2 G1
19 L3 nil L3
20 L2 nil L2
21 L1 nil L1
22 IGT IGT IGT
23 #4 #4 #4
24 E1 E1 E1
25 #2 #2 #2
26 E02 E02 E02


next to 20v AFM AUTO ECU 2 big board

[levin101413nae]

жаль ссылку потерял а картинки не перекачиваются.Короче как я понял япы распиеновку немного изменили и с желтой этикеткой не будет корректно работать без переделки там где должна быть с оранжевой