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View Full Version : Need help, ecu no communication



elcarpuz
13th September, 2013, 06:28 PM
Last month i do chiptuning on ecu, unsolder plcc32, reprog and resolder...

when replug, engine start and stop after 20 seconds, i restart and engine stop after 10 seconds, after impossible to restart

reopen ecu unsolder, resolder 3 or 4 times for retest with chiptuned and ORI, same problem....

on diag no communication

i have hound anorher second hand ecu, test and start well

open unsolder program and resold, and again same problem, stop automatically, restart 2 or 3 times and after nothing, diag no communication

please idea?

Do you think ot?s better tosolder plcc socket? I'm affraid with socket for wrong contact

I have tested new eprom and always same problem

Solder are with hot air, iron and flux

Gazihan
14th September, 2013, 12:21 AM
What car?


Add a photo to Ecu circuit.

elcarpuz
14th September, 2013, 07:48 AM
It?s truck ecu

bobolin4o
14th September, 2013, 11:06 AM
Did you clean the flux after soldering?
Regards!