HELP! short circuit at diag box! ECU died?? :((

MX3ak · Post by **MX3ak** » June 2nd, 2007, 3:37 pm

I was trying to put the car in diag mode while it was running.

Without enough visibility I and jumped B+ and GND by mistake. Then a short circuit litle spark flashed at B+ plug and the car imediatly stoped.

Then I try to start the car, it cranks, but no spark at all!

All lights at dash board are ok.

I Cant get it in diag mode, no flashing light...

Cant find any blow fuse.

What could it be, dead ECU ???

MX3ak · Post by **MX3ak** » June 3rd, 2007, 6:02 am

Basicaly sould I concern about the fact I cant put it in Diag Mode anymore

or

only the coil is blow?

HElP ME PLEASE

MX3ak · Post by **MX3ak** » June 3rd, 2007, 7:54 am

I have power to the coil (12v) with the ignition switch on.

Does that mean ECU is good?

ho bag · Post by **ho bag** » June 3rd, 2007, 12:42 pm

Check your fuses before you do anything.

MX3ak · Post by **MX3ak** » June 3rd, 2007, 1:14 pm

I've checked Fuses allready, thanks

Almost sure ECU is gone

I'm starting to look for one in ebay...

Anyone know if K819 ECU is compatible with K839 or K801?

ho bag · Post by **ho bag** » June 3rd, 2007, 2:23 pm

Pull a plug wire to confirm your getting spark

If you getting spark then you must have fried something for the injectors, im sure there was a relay or a fuse for them.

Confirm 100% for sure you got fuel and spark before you look for a new ecu.

MX3ak · Post by **MX3ak** » June 3rd, 2007, 2:44 pm

There is no spark at all.

Fuel Relay is good (checked with 9v batery)

Smells fuel when crank.

I have unpluged the ECU and it cranks the same way as if ECU is plugged.

B577 relay doesn't click as used to be...

Relay B577 is good (checked with 9v batery)

Any sugestions, please?