Ignition Circuit Cuts Out While Driving

[DaveB]

Hi all,

Just thought I'd post this here as well. The original thread is here:

http://www.skylinesaustralia.com/forums/in...t&p=4331234

Basically, I've done a bit of work to the car lately, including an alarm install and turbo replacement & tune. After finally getting it back on the road, I have a problem where after driving for a short while the whole ignition circuit just drops out, meaning I lose indicators, dash guages (speedo/taco), combination meter, etc. etc. but the _engine keeps running_ (?!)

Battery-powered stuff like the lights, brake lights, and the accessories like the radio keep going too.

After parking the car with ignition off for maybe 10 minutes it resets.

Damn, damn, DAMN annoying... I have spent so long wiring this car I can't describe... I've been pulling the interior apart more times than I care to count, most recently last night, when I was up tracing a short in the parking light circuit until 3am so that I could drive to work today (I have barely been able to drive the car on its new tune, and it has new turbo and over 180rwkw... )

So if anyone has any clues please post them up here or in the original thread... or feel free to PM...

[mike40sydney]

Hi all,

Just thought I'd post this here as well. The original thread is here:

http://www.skylinesaustralia.com/forums/in...t&p=4331234

Basically, I've done a bit of work to the car lately, including an alarm install and turbo replacement & tune. After finally getting it back on the road, I have a problem where after driving for a short while the whole ignition circuit just drops out, meaning I lose indicators, dash guages (speedo/taco), combination meter, etc. etc. but the _engine keeps running_ (?!)

Battery-powered stuff like the lights, brake lights, and the accessories like the radio keep going too.

After parking the car with ignition off for maybe 10 minutes it resets.

Damn, damn, DAMN annoying... I have spent so long wiring this car I can't describe... I've been pulling the interior apart more times than I care to count, most recently last night, when I was up tracing a short in the parking light circuit until 3am so that I could drive to work today (I have barely been able to drive the car on its new tune, and it has new turbo and over 180rwkw... )

So if anyone has any clues please post them up here or in the original thread... or feel free to PM...

sounds weird dave but id be looking at the imobiliser.i know it keeps running but my whole ign is thu my alarm and dash and everything is dead untill activated.just a stab in the dark bud .regards mike

[KiwiRS4T]

Hi all,

Just thought I'd post this here as well. The original thread is here:

http://www.skylinesaustralia.com/forums/in...t&p=4331234

Basically, I've done a bit of work to the car lately, including an alarm install and turbo replacement & tune. After finally getting it back on the road, I have a problem where after driving for a short while the whole ignition circuit just drops out, meaning I lose indicators, dash guages (speedo/taco), combination meter, etc. etc. but the _engine keeps running_ (?!)

Battery-powered stuff like the lights, brake lights, and the accessories like the radio keep going too.

After parking the car with ignition off for maybe 10 minutes it resets.

Damn, damn, DAMN annoying... I have spent so long wiring this car I can't describe... I've been pulling the interior apart more times than I care to count, most recently last night, when I was up tracing a short in the parking light circuit until 3am so that I could drive to work today (I have barely been able to drive the car on its new tune, and it has new turbo and over 180rwkw... )

So if anyone has any clues please post them up here or in the original thread... or feel free to PM...

Everything points to something that you have done recently but the symptoms are similar to what just happened to our Toyota Corona: Car would start and run but no ignition lights, no indicators horn or dash lights. After checking all the fuses took it to a sparky who replaced the ignition switch. They are quite expensive so if you could borrow one you could eliminate that possibility.

[DaveB]

Thanks Mike. Had that thing out so many times now... been racking my brains but I can't think of where I connected it to the ignition. For the ignition connection I used accessories, so that I only have to turn accessories on to stop it re-arming.

[DaveB]

Everything points to something that you have done recently but the symptoms are similar to what just happened to our Toyota Corona: Car would start and run but no ignition lights, no indicators horn or dash lights. After checking all the fuses took it to a sparky who replaced the ignition switch. They are quite expensive so if you could borrow one you could eliminate that possibility.

OH. That sucks... however the "key-in" switch in my ignition barrel is busted (doesn't work), and I have a spare ignition barrel with working key-in switch, perhaps I should change that. I did change ignition barrels with this alarm install because I was installing the alarm as a result of the car being broken into, and they had broken the ignition barrel. Just means I will have to change door locks too, but what the heck if it fixes it.

[DaveB]

Well, I changed the ignition barrel again tonight, but it is still doing it bad. Seems to happen after the engine is well and truly warmed up, but I dunno... can't really pin it down. It's like the complete ignition circuit is off. Lights go out when I open the drivers door and everything.

[DaveB]

Think, HOPE I found the problem - main ignition connection on the back of the fuseblock that I must have forgotten to plug in properly the last time I had it out. Last time it cut out I fiddled with it and the ignition came good; so re-plugged properly and hope that's fixed it. Hasn't happened yet but only had a couple of short drives.