ChrisStarletGT
Member +
what am i testing texx with the multimeter?
where can i get a mines ecu repaired?
- Thread starter ChrisStarletGT
- Start date
pig666eon
Member +
yeah sorry i came across wrong there as mines have their mapped for different specs he can give mines the specs of his car and they can remap it for that ect ie if it was maped for a hybrid i could send it back and they could map it for a td05 running 1.6bar or that as said someone already done it on here they would be the best to be talking to
texx do you recall who done it could have been either jay,rory or madman but i think it was jay cant remember the thread either
Texx
Super Moderator
I would check for any stored fault codes first, if no codes are stored then check for continuity between the injector driver terminals and body ground whilst cranking the engine. Test one terminal at a time.
What you see will depend on the update rate of the meter you have, but you should expect to see some rapid fluctuation in resistance.
ChrisStarletGT
Member +
how do u erase the fault codes? also do i stick the multimeter into the back of the plug on the ecu and disconnect the injector plug?
David-Starlet
Member +
the codes will reset when you disconnect the ecu or battery
Texx
Super Moderator
Remove the EFI fuse for 30 seconds.
Short bursts with a digital multimeter shouldn't cause any issue, however it would be best to disconnect the injectors. Stick the meter probe into the wire side of the ECU plug without disconnecting the plug from the ECU.
hardcoreep
Member +
They won't repair it if the security seals have been broken. They will reload a fresh program on it and charge you the same price for a new one. You just need to call or email them with the serial number on the plaque to confirm its history.
As for damage MINE'S uses an ultra-violet protected chip. If exposed to sunlight it will erase/mess up the maps on the chip.
ChrisStarletGT
Member +
wello if that the case then this one is useless coz the seals are broke might aswell by another one who got a mines ecu that actually works?
pig666eon
Member +
yeah but if you gave the full workings of what boost,fuel pressure cams ect ect im sure they could get it alot better than just getting one of these blindly and sticking one in?
any figures lad of getting this done?
Texx
Super Moderator
Have you tested the injector driver circuits? If the rev counter moves when the engine is being cranked, it's a good indication that the ECU is still alive. May just be a couple of blown transistors or resistors causing the issue.
I would do as Texx is saying mate, test the injector driver circuits with a multimeter, it might be an easy fix! It could be possible the previous user of the ecu has selected and used the wrong impedence injectors and burnt the injector drivers in the ecu. Test it and report back!
They won't repair it if the security seals have been broken. They will reload a fresh program on it and charge you the same price for a new one. You just need to call or email them with the serial number on the plaque to confirm its history.
As for damage MINE'S uses an ultra-violet protected chip. If exposed to sunlight it will erase/mess up the maps on the chip.
The only erasable chip in that photo is the one with the yellow sticker. The yellow sticker is covering the window that allows erasing. You'd have to expose it for days to sunlight to erase it. If someone can get me the EPROM file or you know someone who will lend you the chip I can copy it for you but i doubt that's your problem.
Texx
Super Moderator
That's exactly my thoughts. Could probably lift any blown components out of another stock ECU if that's the case, for a cheap repair.
Rory
Lifer
Every engine works diffirently to modifications.
Would still be a stab in the dark at the end of the day.
Example, it would be like Chris building a megasquirt, and mapping it for somebody on the other side of the world. It doesnt work.
All them ECU's were mapped on cars in Japan, hence they differ, it wasnt Mines, JAM, Blit etc taking a phone order and throwing a rough map on them
See what im saying? :haha:
Would still be a stab in the dark at the end of the day.
Example, it would be like Chris building a megasquirt, and mapping it for somebody on the other side of the world. It doesnt work.
All them ECU's were mapped on cars in Japan, hence they differ, it wasnt Mines, JAM, Blit etc taking a phone order and throwing a rough map on them
See what im saying? :haha:
ChrisStarletGT
Member +
havent tested the injector driver circuits yet connected it to my starlet today after it cranked for abit the jump to life was bussin but the idle was fubared it didnt go anyway near normal idle was near no rpms at all had to rev it to keep it goin as soon as let off it just cut out took the efi fuse out and back in but it wouldnt start after that so gave up for today
on another note i have a spare standard ecu and a mate who maps cars so he gonna hav them both off me and try and fix it for me so fingers crossed it will be sorted it should be mapped to my setup it came of a car with hybrid and front mount only difference is i got forged engine
Starlet_Sam's_Mum
Member +
They won't repair it if the security seals have been broken. They will reload a fresh program on it and charge you the same price for a new one. You just need to call or email them with the serial number on the plaque to confirm its history.
As for damage MINE'S uses an ultra-violet protected chip. If exposed to sunlight it will erase/mess up the maps on the chip.
Are you sure they are Ultra Violet protected? What do you mean by that matey? The chips can be written to using a special frequency, but leaving it out in the sun would take a fair while!