Advice wont start
Discussion
First real problem after 3 years. Long story sorry
Ok so this afternoon, sunny and I thought I would give her a good wash and chassis wash ready for the winter storage.
So went to start her in the garage flat battery. Arrhhh so jump started her into life. Noticed the remote wont lock or unlock so used the immobiliser tag to get her started. Thought nothing of this so washed her and jumped back in and started her up to give a run to dry off. During the run I opened her up running fine then I encounter a biker on a fast bend and had to brake very hard to avoid hitting him. The engine died during breaking and will not start so I coasted to an opening. Called for a tow.
Diagnosing so far neither alarm key fob isnt working but I can overide the immobiliser with the tag. Im getting the fuel pump noise and she is cranking over strong. But I'm not getting any spark on the plugs.
Where is the alarm housed and immobiliser so I can by pass it to rule this out. PM me I know this is senitive area. Does the alarm affect the ignition system?
I thought it could the inertia switch but I think this is only on the fuel side? and I cant find it under the dash so I think mine 1998 400 doesnt have one?
Any other ideas? I will be taking a look tomorrow or next week sometime no real rush.
On the plus side it's not going to get dirty for a while
Ok so this afternoon, sunny and I thought I would give her a good wash and chassis wash ready for the winter storage.
So went to start her in the garage flat battery. Arrhhh so jump started her into life. Noticed the remote wont lock or unlock so used the immobiliser tag to get her started. Thought nothing of this so washed her and jumped back in and started her up to give a run to dry off. During the run I opened her up running fine then I encounter a biker on a fast bend and had to brake very hard to avoid hitting him. The engine died during breaking and will not start so I coasted to an opening. Called for a tow.
Diagnosing so far neither alarm key fob isnt working but I can overide the immobiliser with the tag. Im getting the fuel pump noise and she is cranking over strong. But I'm not getting any spark on the plugs.
Where is the alarm housed and immobiliser so I can by pass it to rule this out. PM me I know this is senitive area. Does the alarm affect the ignition system?
I thought it could the inertia switch but I think this is only on the fuel side? and I cant find it under the dash so I think mine 1998 400 doesnt have one?
Any other ideas? I will be taking a look tomorrow or next week sometime no real rush.
On the plus side it's not going to get dirty for a while
The fact that you've had a flat battery might require the alarm/immobiliser resetting.
IIRC you take the earth off the battery for about 10 to 15 seconds then re-attach the lead and straight away press your alarm 'plipper' and that resets the alarm, hopefully that will sort everything out.
IIRC you take the earth off the battery for about 10 to 15 seconds then re-attach the lead and straight away press your alarm 'plipper' and that resets the alarm, hopefully that will sort everything out.
Edited by V8 GRF on Saturday 18th October 19:01
The ignition system is very simple and would be easy to troubleshoot, and that is where I would start. With the ignition on, you should have 12V on the coil +ve terminal. If not, you're looking for a fuse/wiring fault.
If you take the king lead off the dizzy cap and put it near the plenum top with an air gap of about 1mm then momentarily short the coil -ve to earth, you should get a spark across the air gap. Make sure you don't leave the short in place for more than a fractino of a second or you risk overheating the coil. No spark = duff coil. If the spark is OK then crank the engine over and see if you get a spark now. If not then most likely you have a duff ignition amp or (less likely) pickup.
If you can get a spark on the king lead while cranking then reconnect it to the dizzy and see if you can get a spark on one of the plug HT leads. If not, it's getting lost in the dizzy so inspect the HT lead connections, take the cap off and make sure the rotor arm is in place and you have the brush in place in the cap.
If you take the king lead off the dizzy cap and put it near the plenum top with an air gap of about 1mm then momentarily short the coil -ve to earth, you should get a spark across the air gap. Make sure you don't leave the short in place for more than a fractino of a second or you risk overheating the coil. No spark = duff coil. If the spark is OK then crank the engine over and see if you get a spark now. If not then most likely you have a duff ignition amp or (less likely) pickup.
If you can get a spark on the king lead while cranking then reconnect it to the dizzy and see if you can get a spark on one of the plug HT leads. If not, it's getting lost in the dizzy so inspect the HT lead connections, take the cap off and make sure the rotor arm is in place and you have the brush in place in the cap.
Right then an up date it works fine and I did nothing 
.
Strange one charged the battery fully and connected. Alarm kicked in and was able to turn it off via key normal operation. This it didn't do last week the fob didn't imobilise.
So the question is does the alarm affect the ignition system? I thought it was the fuel pump and starter circuit.
Also any one know the typical currant drain of the alarm. It's strange that mine had a completely dead battery after two weeks of standing it's a new battery less than 4 months old.
.Strange one charged the battery fully and connected. Alarm kicked in and was able to turn it off via key normal operation. This it didn't do last week the fob didn't imobilise.
So the question is does the alarm affect the ignition system? I thought it was the fuel pump and starter circuit.
Also any one know the typical currant drain of the alarm. It's strange that mine had a completely dead battery after two weeks of standing it's a new battery less than 4 months old.
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