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View Full Version : Bosch EDC16C9 Opel Astra 1.7cdti 59kw - DTC P1400 remove and/or egr solenoid emulator



teoturo
6th July, 2013, 10:53 PM
Dear all,
I have an Opel Astra 1.7 cdti 59kw with EDC16C9 ecu, I worked on many of these cars but this is the first time I face a new problem: car has DTC P1400, this is electrical fault DTC specific for Opel cars.

Car came to me in limp mode, with P1400 and other 2 DTCs related to EGR flow (totally 3 faults). As usual I disabled EGR valve and got the 2 egr flow DTCs disappear. Problem is that obviously DTC P1400 stayed and if I clear it, it comes again immediately after I delete it even with engine not running. This DTC generates limp mode.

I think I have 3 options:

1) replace solenoid, but it's difficult to find used and a new part costs much
2) disable DTC from ecu file, so I can also unplug solenoid but I can't find it
3) emulate egr solenoid (it has 5 wires, identical to this valve http://choicecarparts.co.uk/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/3/9/39.jpg) so ecu will not find a solenoid electrical malfunction and I'll drive with no limp mode; egr is disabled so I'll get no DTC for "egr flow too low"

Can somebody help me? Normal EGR disable is not enough.

Attached you find original file.

ominimicu
7th July, 2013, 11:45 AM
Did you disabled EGR via hysterisis?

teoturo
8th July, 2013, 04:31 PM
Yes but this didn't solve electrical fault, MIL and limp mode. Just the 2 dtcs related to egr flow disappeared, but P1400 not.

ominimicu
8th July, 2013, 08:44 PM
did you try disconnecting the EGR?

Babos
8th July, 2013, 08:53 PM
yor file.
pass in PM.
Best regards.
BTW if he unplug sensore he have DTC and car can go to LIMP or Light ON.

pawelelectro
21st February, 2018, 07:42 PM
Hi. I need this file. Can You send me pass ?

rushs13
27th February, 2018, 11:33 PM
Password Please