Circuit is same. Picture i posted explain the working of els which is same in every ecu.Diode shows current will pass in one direction from lights to ecu ELS pinout. Try giving positive signal to els pin. Actually ecu maintain rpm by IAC.
So thanks baradar,i serch, the withe one for AC idle up, and another for Defog back window, Tail Lighti find wire color, and diagram,i disassemble 2e engine wire harness and trace everey wire
Another questionI finished swapingnow i want to fix ecu ho mount ecu to bodyi dont have ecu bracket and dont know how do iti like do it as same as companyThanks for your reply
Great.Original ECU is mounted inside the dashboard in these car. There are holes for screw in ecu you can make a bracket and mount it in the dashboard. Place where you find each to reach.As I removed every AC box from my car so i had mounted ecu on the firewall.
hi bradar, thanks, in orginal ecu mount under the heater boxDo you know part number for the map sensor for 4afe engin /ecu 12800?all 4afe have one type of map sensor?how test map sensor?
You're welcome Yes it is mounted there.Sorry don't have part number. And yes It's different depending upon the generation of engine.You need a vacuum apparatus. So you can give vacuum even when engine is off.Then you can check the resistance (ohm).
@Hassan1991 hey bro just wanted to say that the vehicle is running great ! and im damn happy about the performance ! changed oil twice and cleaned the injectors ! rewired few lines ! and all good now !
and im just curios on developing an arduino error code reader ! i may not know if anyone tried ! but don't we have a CAN lines on this models ECU
ive found this site and i see K and L CAN lines on the diagnostic socket !
http://pinoutguide.com/CarElectronics/Toyota_old_diagnostic_pinout.shtml
ur ideas on this would be valuable
Glad to know.No, these are very basic ecu's no can bus in old generations ecu's yes you can make a device. different voltages gives you different error codes, you just have to make a program that take input in voltages and tells which specific error it is, or you can make a counter which reads how many times check light blinks and give you error code
Hi I swapped my 2e to 4efe and the 4efe wiring doesn't fit with the dashboard of 2e.. any help?? Can I fit the 4efe outside with the 2e wiring inside???
there's only few wires need to be connected to dashboard. like Vss, Rpm, A/C clutch, check light and els.
So I have to put 4efe wiring on my dashboard?
no just connect these wires. with your original e90 wiring
Hmm you mean all my wiring must be from ep81 .. and only change the engine ... but will 4efe start with 2e ecu??
no it will not.
matching ECU shall be connected with all wiring routed to sensors. 2E ECU is plain old school box.
NO. buy complete engine with ecu and wiring. then just connect wires from engine wiring harness to body wiring.
connections to ecu is not problem but whats about the rest 3 sockets that goes into the dashpanel
told you already there are some wires not 3 sockets.againradiator fan.STA (starter signal)A/C ac clutchELS electronic loadW check lightRPM tachometer. VSS speed sensor. (may be forgetting something)get the complete wiring that have EFI main relay and Fuel cut relay.
I have a similar challenge, but mine is that the harness has no socket on the wires from ecu to the distributor. so I don't know which one goes where out of the six. please help
Hey bro iam the original thread creator ! hope you safe and doing well ! recently ive got a new problem , i have lost the signal from fc pin ! unfortunately for me to further diagnosis iam not in my home country and as i got to know the fuel pump relay has lost the ground signal from fc ! what might be the problem ?
No voltages in STA pin while igniting the engine can cause this. As ecu will not know stator is cranking.
