ppholdings
New Member
Hi All, not new here used to have a P38 but could not find my old log in details. Anyway I am back again with an L322 I have had for around a year. No issues with it whatsover until 2 weeks ago when I had a new windscreen install by national provider. Total disaster but thats another story.
Ok my problem.
Car has good battery, almost new. It cranks fine but wont start. I have noticed maybe the last month that it was slightly slower to start than normal when cold but other than that fine. No dash warnings nothing. Last Wednesday it would not start. AA came out and diagnosed High Pressure Fuel pump and EGR. EGR doesnt concern me it always comes up. There is pressure on the low side both pumps are good and working perfectly (tested and tested again plus secondary pump is quite new). Anyway I get towed back to Birmingham from London to my fathers garage as AA man could not help.Back a
Back at the garage we connect various code readers from local mechanics and no faults show. AA had cleared the HP fault and it hasnt returned. So next we check all connections and double check fuel pressure on the low pressure side and all good. We replace fuel filter anyway as needed doing and clean all electrical connections including to the common rail fuel pressure sensor. Unfortunately I did not try and start it after messing with the rail sensor. We subsequently sprayed carb cleaner in the inlet and it fired instantly. No this is where we get lost in this. It started way to quick, almost instantly and ran fine for 5 days just running around local although still slower to start than normal it did actual start ok.
Drove it back to London where I live and no issues, even seemed a little sharper, more responsive. I go back to the car next morning and nothing. Turns overs and wont start, Tried a squirt or carb cleaner (dont have easy start) and nothing just cranks and doesnt fire. This is odd. I have ordered easystart and will report back ASAP but I do not think its going to start. By the way my intention driving back to London was to see if it was injector leak off. Started fine being left over night in Bham so I thought leave it a few days in London and if it doesnt start then I am closer to knowing if injectors or not. Obvious FAIL as they car now wont start. I could be this but not convinced as wont fire at all.
Things That Happened That Could of Caused This (But I doubt it)
I ran it low on fuel before this issue due to lazyiness (25 miles on range twice).
Windscreen company reported a random black wire unconnected in passenger pillar (where air bag is). They said all air bag connections were connected so I discounted this but have not checked myself.
On the plug on the Common Rail Fuel Pressure Sensor the Green/ Brown wire is slightly damaged. Its not broken but its been twisted and I can see copper strand.
Things We have Checked
Tank pump is running.
Secondary Pump is running.
Fuel filter replaced and all connections checked.
No obvious issues with HP pump.
Things We Have Not Checked
Injector leak off test/ HP rail pressure since AA
Not changed any sensors yet.
Random Possibilities?
Ignition key or switch, its strange that it started so easily. We genuinely think it started because it was going to and not because of carb cleaner helping it along.
The HP fuel pump is unlikely as it ran fine for a number of days plus drove from Bham to London.
Could the vehicle be immobilised? Surely it would not crank if it is?
The damaged wire on the rail sensor probably doesnt help but I cant see how this could be the culprit but I am off to maplin to buy some wire and good connectors and I will repair and lengthen the cable. I also got a cheap tuning gizmo of ebay with spare connectors in case I damage a plug but again dont think this will make any difference.
So right now they car is effectively fubar sitting kerbside in North London. Battery is starting to drain from various attempts at getting this going. Last resort I call the AA out and get towed back but still need to fix this problem once its in the garage. Lots of non specialist mechanics looked at it and no clue.There is an RR place not far in Bham but I its getting it there.
Does anyone have diagnostics around the Angel area? I will happily pay you!!
Does anyone have any ideas?? There are lots of threads and I have read them all now but not many post back with the answer once fixed. If I fix this I promise I will update the thread!!
Thanks in advance and apologies for the long thread but wanted to add as much as possible.
Ok my problem.
Car has good battery, almost new. It cranks fine but wont start. I have noticed maybe the last month that it was slightly slower to start than normal when cold but other than that fine. No dash warnings nothing. Last Wednesday it would not start. AA came out and diagnosed High Pressure Fuel pump and EGR. EGR doesnt concern me it always comes up. There is pressure on the low side both pumps are good and working perfectly (tested and tested again plus secondary pump is quite new). Anyway I get towed back to Birmingham from London to my fathers garage as AA man could not help.Back a
Back at the garage we connect various code readers from local mechanics and no faults show. AA had cleared the HP fault and it hasnt returned. So next we check all connections and double check fuel pressure on the low pressure side and all good. We replace fuel filter anyway as needed doing and clean all electrical connections including to the common rail fuel pressure sensor. Unfortunately I did not try and start it after messing with the rail sensor. We subsequently sprayed carb cleaner in the inlet and it fired instantly. No this is where we get lost in this. It started way to quick, almost instantly and ran fine for 5 days just running around local although still slower to start than normal it did actual start ok.
Drove it back to London where I live and no issues, even seemed a little sharper, more responsive. I go back to the car next morning and nothing. Turns overs and wont start, Tried a squirt or carb cleaner (dont have easy start) and nothing just cranks and doesnt fire. This is odd. I have ordered easystart and will report back ASAP but I do not think its going to start. By the way my intention driving back to London was to see if it was injector leak off. Started fine being left over night in Bham so I thought leave it a few days in London and if it doesnt start then I am closer to knowing if injectors or not. Obvious FAIL as they car now wont start. I could be this but not convinced as wont fire at all.
Things That Happened That Could of Caused This (But I doubt it)
I ran it low on fuel before this issue due to lazyiness (25 miles on range twice).
Windscreen company reported a random black wire unconnected in passenger pillar (where air bag is). They said all air bag connections were connected so I discounted this but have not checked myself.
On the plug on the Common Rail Fuel Pressure Sensor the Green/ Brown wire is slightly damaged. Its not broken but its been twisted and I can see copper strand.
Things We have Checked
Tank pump is running.
Secondary Pump is running.
Fuel filter replaced and all connections checked.
No obvious issues with HP pump.
Things We Have Not Checked
Injector leak off test/ HP rail pressure since AA
Not changed any sensors yet.
Random Possibilities?
Ignition key or switch, its strange that it started so easily. We genuinely think it started because it was going to and not because of carb cleaner helping it along.
The HP fuel pump is unlikely as it ran fine for a number of days plus drove from Bham to London.
Could the vehicle be immobilised? Surely it would not crank if it is?
The damaged wire on the rail sensor probably doesnt help but I cant see how this could be the culprit but I am off to maplin to buy some wire and good connectors and I will repair and lengthen the cable. I also got a cheap tuning gizmo of ebay with spare connectors in case I damage a plug but again dont think this will make any difference.
So right now they car is effectively fubar sitting kerbside in North London. Battery is starting to drain from various attempts at getting this going. Last resort I call the AA out and get towed back but still need to fix this problem once its in the garage. Lots of non specialist mechanics looked at it and no clue.There is an RR place not far in Bham but I its getting it there.
Does anyone have diagnostics around the Angel area? I will happily pay you!!
Does anyone have any ideas?? There are lots of threads and I have read them all now but not many post back with the answer once fixed. If I fix this I promise I will update the thread!!
Thanks in advance and apologies for the long thread but wanted to add as much as possible.
