:hmm: Diagnostic port, where abouts is it? I'm having alot of trouble, a mechanic i took it to couldnt find it and has done plenty of 4age conversions etc, also ecu's i have a 4ac ecu, that is from an older model 4a engine yeh? please really need the help look on net and find people using motec and haltech ecu's but mine isnt turbo'd or supercharged

Edited August 15, 200917 yr by cozza_mane

um the 4ac was carby

um the 4ac was carby

 

:hmm:

 

Does your mechanic work out of a shed made of sticks and straw!!!?? :)

yeh i realised that 4ac was carby looked that up lol my bad it was 4a-G it was scratched n i had a light this time sorry, i havent got a good look down there but diagnostic port wtf someone please explain, is that the port somewhere on the ecu which an 'auto-tap' diagnostic scanner..or comp can hook upto? I'm very new and want to learn some of this stuff to help me :hmm: i just don't want to be pullin things out to check then stuff something cause its my daily ride

Edited August 4, 200917 yr by cozza_mane

If the car in question is the ae82, you'll find a few plugs down near where the wiper motor lives. One of the plugs has two connections in it, thats for being able to time(ignition) the motor. From memory it cancels all settings like advance etc and just sets it to the base ignition timing. If its not done you wont be able to correctly set the timing.

Apart from that i didn't really think the 4age had a diagnostic port. But then again it has been a fair while since i had one...

 

One good idea - grab yourself a few different service/repair manuals on the car in question.

If the car in question is the ae82, you'll find a few plugs down near where the wiper motor lives. One of the plugs has two connections in it, thats for being able to time(ignition) the motor. From memory it cancels all settings like advance etc and just sets it to the base ignition timing. If its not done you wont be able to correctly set the timing.

Apart from that i didn't really think the 4age had a diagnostic port. But then again it has been a fair while since i had one...

 

One good idea - grab yourself a few different service/repair manuals on the car in question.

 

Bigports have the cluster of open-ended connectors near the wiper motor, pretty sure smallports have the single moulded diagnostic port connector

Bigports have the cluster of open-ended connectors near the wiper motor, pretty sure smallports have the single moulded diagnostic port connector

 

They do.

yeh just had a look there is a connection near wiper motor and fusebox but unsure, il get photo's up cause yeh, if the bloke said he couldnt find it, he can sure bullshit as we've been told his deals with alot of 4age conversion etc, n i have seen them outside to, so yeh il take it sumwhere soon, thanks for all feed back helpin me heaps :P the car is in the dp, ke55 81, duno the engine model havent looked might have to check that to find a manual, which is very hard to find but have 4age one of the net :lolcry:

Edited August 8, 200917 yr by cozza_mane

Get pics and post them up, Pretty sure we are all confused right now.

 

As far as I can figure out, This is a 4age in a KE55 so the loom has most probably been modified.