Vl misfiring

[Chris Black]

hey

I took my vl to a mechanic yesterday as it was misfiring only on the idle and sounding like it is going to stall when i try to take off. When the engine is very cold it seems to go ok for about the first 10 min until it gets a bit of heat into the engine it seems to start playing up. The mechanic replaced my spark plugs cause they were stuffed and told me it was bad fuel. I've still got the same problem and was wondering if it could of been something else messin up???? i've checked my dizzy for cracks or water and it is fine i've had the leads replaced and sparkys are new.

Any help would be great as its driving me crazy

[VL Berlina 5speed]

runs fine until it gets warm is a common discreption of a CAS (crank angle sensor) on its way out

look in the dissy cap, is there any orange dust? if so its the rubber seal that is gone and is spewing dust on the cas disc.
replace the CAS and seal,

also wiggle the plug on top of the dissy as this is the cas plug, the connections can get stuffed and make intermited probs

[Chris Black]

I've already had a look in dizzy cap and it was spotless. If it is still the CAS is there another way that i can tell?

[VL Berlina 5speed]

run a fault code test on the computer. ill find the guide for you.
it will give you a good guide

[VL Berlina 5speed]

14. Engine Control Unit
TO CHECK ERROR CODES:
1. remove screw retaining the passenger side kick panel
2. turn the diagnostic mode selector fully clockwise to diagnostic
3. start the engine and let it idle
4. watch the LED's flash (red and green), the red represents tens and the green represents ones (so if the red flashes twice and the green 4 times, thats 24). 14, 23, 24, and 31 should show
5. drive the car above 10km/h, this will cancel code 14
6. stop the motor and then turn the ignition to the on position
7. press the accelerator, this will cancel 23
8. put the car in neutral, then back into another gear, then back to neutral. this will cancel 24
9. turn the air con on, then off this will cancel 31
10. look at the codes that are now displayed, 31 means you dont have air con or its not working and 44 means your air con is working.
11. any other codes displayed besides this means there is a fault in that section
12. turn the diagnostic mode selector back full anticlockwise then turn the ignition off.
13. erase the memory by turning the ignition on, then moving the diagnostic mode selector fully clockwise for 2 seconds, then fully anticlockwise for 2 seconds. turn the key off and the memory is now cleared

CODES ARE:
11 Crank angle sensor circuit
12 Air flow meter circuit
13 coolant temperature sensor circuit
14 Vehicle speed sensor circuit
21 ignition signal circuit
23 throttle switch circuit
24 neutral switch circuit
31 satisfactory operation (non air conditioned models) air conditioner circuit (air conditioned models)
32 starter signal circuit
34 detonation sensor circuit (turbo models)
44 satisfactory operation (air conditioned models)

see how you go with that

[Chris Black]

Good idea i didn't think of that. i have a work shop manual for the vl so i'll have a look threw there to see if it can show any light on what might be going wrong. i'll try it tomoro and let u no how it goes