Poorly xjr6 after running so sweet
#1
Poorly xjr6 after running so sweet
Well after all the issues I had! Misfired etc it was going to well.just to mention it has had all new genuine coil packs.correct plugs new genuine crank sensor.new 02 sensors.
Took a 100 mile trip today fine no problems motor way driving.But on way home e in the fast lane doing 70to 80 max.symptoms large jolt like a misfire but on all cylinders and engine manage.ent light flicks on then off then drove fine.happening every minute or so
This happens again and again to the point I came off motorway onto a roads.then it became almost constant to the point no more than ten mile an hr foot to floor.popping banging smells like raw fuelat back.
Only code in eck is p1333..
Car will start and idle till misfire and eml on then dies...any ideas lads....
Took a 100 mile trip today fine no problems motor way driving.But on way home e in the fast lane doing 70to 80 max.symptoms large jolt like a misfire but on all cylinders and engine manage.ent light flicks on then off then drove fine.happening every minute or so
This happens again and again to the point I came off motorway onto a roads.then it became almost constant to the point no more than ten mile an hr foot to floor.popping banging smells like raw fuelat back.
Only code in eck is p1333..
Car will start and idle till misfire and eml on then dies...any ideas lads....
#2
Starting point would be crankshaft position sensor . Junk . Can show symptoms of failure without showing code .
P1333 = Knock Sensor 4 High Input . P1333 related to P0333 ? See if you can tap around sensor while installed and get it to respond at the ECU connector Red . With a Fluke meter they both read 1.0 M ohms with engine off and still . Inspect ECU connector for broken or loose socket " tabs " and corrosion . Look at the difference between the 2 sensors as a comparison . A bank is Fwd . Clean shield ground PIG153L on engine firewall upper left side ( multiple wires on terminal point )
Hope this helps , Parker
P1333 = Knock Sensor 4 High Input . P1333 related to P0333 ? See if you can tap around sensor while installed and get it to respond at the ECU connector Red . With a Fluke meter they both read 1.0 M ohms with engine off and still . Inspect ECU connector for broken or loose socket " tabs " and corrosion . Look at the difference between the 2 sensors as a comparison . A bank is Fwd . Clean shield ground PIG153L on engine firewall upper left side ( multiple wires on terminal point )
Hope this helps , Parker
Last edited by Lady Penelope; 08-21-2017 at 08:13 AM.
#3
Just an update.
Checked codes with a proven scanner no codes data ok start from cold runs perfect.
Go on long test drive faultless, after 25 mins it misses a beat engine light flickers then it progress from there more and more often till basically it cuts out and undrivable as the evening before.left foot braking required.
So fitted a good known crank sensor still the same so NOT that.
Checked all fuel pump relays ok and swapped about.even removed fuel pump 1 relay and bridged out fuel pump 2 relay to run car on pump 2 to see if pump 1 defective still the same NOT that.
It has new coil packs but I removed cover and found if disconnected cyl1 engine misfire then after a while it hiccups eml on cuts out.
Proceed through all coil packs does the same as above part fro. When you disconnect cyl3 no eml no cutting out or eml light and same if you disconnect cyl6.but all others the fault is aparent.making me think timing may have jumped!!! Any thoughts on that guys would be helpfull.
Or maybe it's a faulty ecm.
Checked codes with a proven scanner no codes data ok start from cold runs perfect.
Go on long test drive faultless, after 25 mins it misses a beat engine light flickers then it progress from there more and more often till basically it cuts out and undrivable as the evening before.left foot braking required.
So fitted a good known crank sensor still the same so NOT that.
Checked all fuel pump relays ok and swapped about.even removed fuel pump 1 relay and bridged out fuel pump 2 relay to run car on pump 2 to see if pump 1 defective still the same NOT that.
It has new coil packs but I removed cover and found if disconnected cyl1 engine misfire then after a while it hiccups eml on cuts out.
Proceed through all coil packs does the same as above part fro. When you disconnect cyl3 no eml no cutting out or eml light and same if you disconnect cyl6.but all others the fault is aparent.making me think timing may have jumped!!! Any thoughts on that guys would be helpfull.
Or maybe it's a faulty ecm.
Last edited by Stevieb76; 08-21-2017 at 04:26 PM.
#4
#5
Hi can any one tell me the fuel flow specs I believe it's 125 litres an hr..so I worked it out at 1 ltr 30 secs..
I've done it on the return pipe and I got 1 and a quarter ltrs over 30 secs when car not running well and he holding it at idle.will try when cold and running ok.
I've done it on the return pipe and I got 1 and a quarter ltrs over 30 secs when car not running well and he holding it at idle.will try when cold and running ok.
#6
update.the car has been in the jaguar garazgevforca week and they say they have fixed it..they say it was losingvhe 5v supply intermitantly to thr cts via dry joints in ecm...£480 later for there diag.i tried everything and couldn't find the problem hence taking to them collecting tomorrow.
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