0 Members and 1 Guest are viewing this topic.
Bad earth connection from battery to chassis..?
Could it possibly be the battery in the key is on it's way out which is making the immobiliser kick in
Afraid no spare key, so may well have the battery replaced. Can't hurt!In reply to Asterix, have checked earth (looks good) and have added another cable from neg terminal to top of suspension tower in case.BTW, I've noticed that the positive terminal connection has a fair amount of play around the terminal post. This is with bolt fully 'tightened' - could this be an issue that its not tight tight?
Oh no have I made a mistake coming back to an Hyundai, I had 2 years of hell with this problem with an accent, numerous sensors under the bonnet was changed, the engine management system was changed and finally they had the car for 7 weeks and the wiring loom was changed the dealership was as frustated as I was the new wiring loom did not solve the problem, so hyundai UK changed the car. So hopefully you resolve your problem soon
Oh no have I made a mistake coming back to an Hyundai, I had 2 years of hell with this problem with an accent,
What gomes to i30 battery terminals, the originals are quite poor quality. After time the seem to come loose as the metal bents due stress. Also they cant get tighter grip due their mechanical structure. By over tighting the terminal it will loose its structure and come loose. I changed my terminals to "old school" solid metal ones and ditched the sheet metal ones. After change I never had issues with loose battery terminals.
are well i can see that the forums going to be fun!!! Just pointing out that this intermittent starting problem may not get resolved, mine was only resolved by the car being replaced, and as indicated 1000's was spent on trying to resolve the problem, note the wiring loom is one of, if not the first fit on the assembly line, it therefore follows that its replacement is not a 5 minute job. I'm just giving an heads up in case this problem is a protracted one. Hopefully not but you never know.
Hello, troubleshooting this could be tricky - When the battery is disconnected, something could be unlatching (electronically). To me, it looks like something is drawing too much current and causing either a protection type circuit to engage, or one of the relays which says ok to supply power is not getting the current it needs. Disconnecting the battery, and also the ecu, could possibly be resetting the system. I would look at the relays in the engine bay. Are they getting the volts required to engage ? If not then why not? It could be something as simple as carbon build up on the relay contacts. I hope you find the problem soon.
apart from perhaps the first 2 visits to the supplying dealership all other work carried out on the vehicle was under the guidance of Hyundai tech department. Indeed at the stage when they changed the engine management system, and needless to say that a dealership would not carryout such an expensive, hopeful solution without Hyundai approval. As they would have done for changing the wiring loom.
Even though you believe the battery is good, have you tried using some jumper leads and a second battery.
Oh no have I made a mistake coming back to an Hyundai, I had 2 years of hell with this problem with an accent, numerous sensors under the bonnet was changed, the engine management system was changed and finally they had the car for 7 weeks and the wiring loom was changed the dealership was as frustated as I was the new wiring loom did not solve the problem, so hyundai UK changed the car. ............
Quote from: Phil №❶ on August 05, 2017, 04:56:14Even though you believe the battery is good, have you tried using some jumper leads and a second battery.A good suggestion Phil, being intermittent though result might not be conclusive. Certainly worth a try though.