Year of Manufacture: 2005 Engine Size and Code: 1.9 F9Q 758 ( Optional ) Scanner Used: DEC SS 2 ( Optional) Fault Codes: DF226
Hi all I took as a part exchange. It had a blocked dpf which I cleared but this code continues to be a problem
DF 226, induction damper, abnormal voltage,signal outside lower limit and no status
It wont clear using the scan tool even with the plug disconnected from the damper. It can randomly disappear by itself and return after a couple of days. The damper seems to be working as it should and goes through adaption successfully but codes still won't clear. Possible ecu fault? DPF is clear and pressure readings are low.
Old car and doesn't owe me anything but has a great spec and in great condition so a bit reluctant to let it go to the crusher.
Any input appreciated.
TIA Jim.
Re: Renault Laguna initiale
Posted by andrew pethig on June 30, 2019, 4:20 pm, in reply to "Renault Laguna initiale" Andrew Pethig
high resistance in wires?
load test them with an h7 bulb is my preferred method
Yes I tested the wiring using a H7 bulb and all tested good. I am going to try a different valve on it later in the week just to eliminate it. I'l let you know how that goes. jim power
Fitted a known good damper valve to this car and it made no difference, fault was still present and would not clear but..... I cleared the ECU memory which was an option on the scan tool with a warning it would clear the injection codes.
I then took it for a drive and after stopping it and restarting I got limp mode and a fault for the injector coding, no surprise really.
I had some difficulty reentering the codes as Dec had the option in the menu but only the option.
As a last resort I connected G Scan and successfully reentered the codes after about three failed attempts. I gave it a long pause before pressing the enter button and that seemed to work.
G Scan was the last tool I expected to carry out this function on a Renault but you live and learn.
on June 30, 2019, 4:20 pm, in reply to "