18th November 2003 Midnight (can't sleep thinking about car)
Updated few times, last update 17th December 2003
It is known that car manufacturers have many different configurations on ONE BASE MODEL. Example the Toyota 4AGE 20v have different issues of ABS, brakes mechanical (single pot vs. twin pots), suspensions (super strut vs. McPherson), Air-Bag, engines mechanically, normal vs. high performance twincam, electronics gadgets and many more.
However it is just known a few hours ago that the Toyota 4AGE 20v engine have different Diagnosis feature between: -
For the AE101-?????
But has extra
However it is known that this is a AUTO version, not Manual Transmission.
The DCN Pro Hand Held Diagnostic tool was plugged into the system and found only 10 readings vs. the E-AE101-ACMZF from above, which has 15 readings.
Then the AE101-AGMVF
It has everything the two above has: -
Another discovery on 4A-G 20v year 91 E-AE101-ACMZF
This old "silvertop" has extra pins
If you check the ECU pins out from Toyota 20v AFM Silvertop ECU's pin out then it is no surprise on the TEM, which highly suspected at Pin 1 of the 16 pins plug named Engine Temperature. It is unknown which sensor is used at this point. The signal could very well be a simulated results from water temperature and air intake temperature combinations???
So far local diagnosis reader, namely the DCN Pro of DCN Scan, both by Hanatech only have adaptor socket that reads everything from the Diagnosis Plug EXCEPT pin IG-, WA and WB.
At 1st it is unknown why, and thought as normal. However careful study now shows that it is incomplete. This is no wonder why the diagnosis reader cannot read the distributor timing when it is altered. It can only read the timing when the engine is accelerated, but not during adjustment. This is because it is not connected to IG-.
As for the WA and WB, it is unknown at this stage what they are.
ACOUSTICS SECTION AUDIO SECTION CAR SECTION
HOME - Technical Website for Acoustics, Audio and Car
Diagnostic Services available at: -
Charges dependent upon different mechanic and services required and negotiations???