Author: WestCountryKuga
Subject: ALL Mk1 engine management & DPF issues & info
Posted: 07 Jun 2017 at 7:55am
So update on the DPF issues that I have been seeing: No further issues regarding the fuel vaporizer that was replaced, however I haven't been having that much luck of late.
Edited by WestCountryKuga - 3 hours 4 minutes ago at 7:56am
Subject: ALL Mk1 engine management & DPF issues & info
Posted: 07 Jun 2017 at 7:55am
So update on the DPF issues that I have been seeing: No further issues regarding the fuel vaporizer that was replaced, however I haven't been having that much luck of late.
Upon starting last week, had the "bong". Used ForScan lite for Android and the following codes came up:
P2463 - DPF Soot Accumulation (lamp on fault)
P2452:97-2F - DPF Differential Pressure Sensor (DPS) circuit (grey DTC)
P2456:92-2F - DPF DPS Circuit Intermittent / Erratic (grey DTC)
P003A:85-28 - Turbo Boost Control A Position Exceeding Learning Limit (grey DTC)
On the weekend had a little look under the bonnet, logging data using ForScan on DPF sensor and EGR sensors and upon unplugging and re-plugging saw EGR values kick into life that weren't there previous, so assumed it was a dodgy connection on the DPS. So cleared the fault codes.
Next motorway journey upon reaching somewhere between 65 and 70, engine malfunction warning and limp mode. was logging data on the journey and witnessed nothing irregular on EGR, and DPS reference voltage was a steady 0.37 (haven't seen this on anything else other than 5V when I disconnected it).
Fault codes this time were:
P2002:00-AF - Particulate trap efficiency below threshold (Bank1)
Looks that guidance on this fault code is to check pipes for blockages etc which is my next job when I get a chance to get it up on ramps.
In the mean time, it drives fine, Malfunction light doesn't return on next journey until reaching 65 or so. So about town it is fine, just the motorway there is issues, but the limp mode isn't too bad.
Just to add, I do mainly motorway miles in this car, so is having a good 2 opportunities a day to regen, and since the vaporizer incident, have changed driving habits by setting CC to 70 rather than the 65 I used to drive at previously. This should give the DPF plenty of time and revs to regen.
I'll keep updating as and when things progress, but my next course of action is hoses then if not those, then a new DPS.
If anyone has had experience around these things then any help is appreciated.
-WCK
Edited by WestCountryKuga - 3 hours 4 minutes ago at 7:56am