idle problem, high fuel consumption
#1
idle problem, high fuel consumption
Hi everybody
I am new here! My name is Klaus and I live in the south of Germany at the lake Starnberg.
Last year I bought a Jaguar XJS '92 4.0 manual in British racing green in Milan Italy. No rust but Italian servicing. Unbelievable! I am still working to get the car to run properly.
They removed the catalytic converter and they more or less did no work properly. So the car looks great but doesn't run great.
The engine is the problem... Idle is rough and up and down. The fuel consumption for a manual far too high. The falt on display is ff24.
So far I changed the catalytic converter, O2 sensor, IACV, airflow meter, spark plugs, temperature sensor... The ECU was checked by a professional. No change and I am running out of Ideas...
Does the AJ6 engine have a crank shaft position sensor? Any other ideas. I would be very grateful for any help!
Cheers Klaus
I am new here! My name is Klaus and I live in the south of Germany at the lake Starnberg.
Last year I bought a Jaguar XJS '92 4.0 manual in British racing green in Milan Italy. No rust but Italian servicing. Unbelievable! I am still working to get the car to run properly.
They removed the catalytic converter and they more or less did no work properly. So the car looks great but doesn't run great.
The engine is the problem... Idle is rough and up and down. The fuel consumption for a manual far too high. The falt on display is ff24.
So far I changed the catalytic converter, O2 sensor, IACV, airflow meter, spark plugs, temperature sensor... The ECU was checked by a professional. No change and I am running out of Ideas...
Does the AJ6 engine have a crank shaft position sensor? Any other ideas. I would be very grateful for any help!
Cheers Klaus
#2
From the Jag-lovers forum about FF24:
FF24 refers to the ECU’s monitoring of ignition amplifier function. You may want to check wire integrity and connection to your ignition amplifier (on the '93, 4 liter, left hand drive, the
amplifier is usually mounted in the engine bay to the upper right of the radiator, right next to the head light adjustment screws and in front of the coil).
You might want to look at the throttle position sensor, and adjust the voltage to the correct value. I forget it off the top of the my head, but it's well detailed in the forums. The procedure is identical to the XJ40 sedans ( 1987-94) so those forums may help you as well.
Yes, there is a crankshaft position sensor and it is a known failure point. Looking at the engine from the front, should be about 10 o clock position (i.e right side of the car). Part 17 in the diagram: https://parts.jaguarlandroverclassic.../brand/jaguar/
FF24 refers to the ECU’s monitoring of ignition amplifier function. You may want to check wire integrity and connection to your ignition amplifier (on the '93, 4 liter, left hand drive, the
amplifier is usually mounted in the engine bay to the upper right of the radiator, right next to the head light adjustment screws and in front of the coil).
You might want to look at the throttle position sensor, and adjust the voltage to the correct value. I forget it off the top of the my head, but it's well detailed in the forums. The procedure is identical to the XJ40 sedans ( 1987-94) so those forums may help you as well.
Yes, there is a crankshaft position sensor and it is a known failure point. Looking at the engine from the front, should be about 10 o clock position (i.e right side of the car). Part 17 in the diagram: https://parts.jaguarlandroverclassic.../brand/jaguar/
Last edited by Jagboi64; 02-10-2020 at 01:15 PM.
The following 2 users liked this post by Jagboi64:
Greg in France (02-11-2020),
Mkii250 (02-22-2020)
#4
Thread
Thread Starter
Forum
Replies
Last Post
KittyVet
XK8 / XKR ( X100 )
13
05-31-2020 11:57 AM
watson6505
F-Type ( X152 )
65
11-28-2019 12:03 PM
ANIMAL JAGUAR
Diesel variants - All models
15
11-14-2019 03:06 AM
sweatyfox
XK8 / XKR ( X100 )
47
01-19-2017 01:10 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)