very Strange ecu problem

[Ottoman]

I recently got my DSMlink in and up and running

but i have a strange intermittent problem...


sometimes the ecu works... sometimes it doesn't


if i pull the wiring harness out and straight and connect the ecu.. it works

depending on the way it twists or turns.. or moves a little... it dies and goes off.. and i get the crazy clicking under the dashboard...

sometimes it dies "halfway" the car runs.. but i get CEL's..
sometimes its MDP, sometimes Front and rear o2 and others..


when i put the stock ecu back.. none of these problems happen.. no matter which way i pull or tug the wiring..

it's only with the DSMlink'ed ecu does this occur

a couple times, i've died in traffic or on the highway... it's not fun (or safe)...
and all tuning is lost.. ecu reverts back to stock..

sometimes i just give the ecu a good wack and it comes back on... sometimes i just push the harness.. it comes back on... i *think* it's 4th the harness at the very top (when ecu is bolted in place) but when i inspect it.. it looks fine...





i've had to go back to the stock ecu at the moment..


the ecu itself has just recently come back from steve.. so I doubt the socketing is the issue...


i'm very confused...

 

[steve]

Sounds like you have narrowed it down to a problem with the connector.
Make sure then the pins are clean and not corroded on both sides. See if you can figure out which pins are causing the problem.

I didn't notice any problems with the soldering of the connectors to the board but my attention was focused on fixing the hack job done in socketing the ECU.

Steve