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Corrupted BSI, fuse or something else?

indoldn

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Refitted my HPFP and replaced induction intake to silicone one from MTC and refitted the battery and now car won't start.

I am sure I waited more than 3 minutes before disconnecting the battery.

I refitted HPFP then reconnected the electrical connector then install the silicone induction hose. Made a stupid mistake of cutting one of the hoses (which has a plastic adapter) to the right of the engine (when looking at the engine) and now trying to source a new one. Managed to do a work around for it at the moment.

Battery was fully charged before re-fitting and ensured everything was connected and secure.
Tried to start the car and dash lit up then when trying to start you hear a click and everything went. Car had no electrical power whatsoever and nothing would happen if you try to start again, dash is blank. Waited a while and disconnected the battery, it still had good charge.
Battery is about a year old. Rechecked all the connectors are secure and reconnected the battery and waited a bit and tried again and still the same.

Attempted BSI reset a number of times and still couldn't start the car. At one point after attempting BSI reset the clock was moving one hour at a time (I think) then on another attempt, external lights lit up.

Last year I forgot to reconnect the connector on the front side of the battery after refitting the battery and car wouldn't start but after connecting all OK again. I had lots of errors but they cleared themselves.

I am now going to recheck all the connectors, check for corrosions on any of the connectors, check all the fuses. Will also plugin in an OBD to see if I can read anything when I have power.

Any ideas/suggestions would be very appreciated.
 

indoldn

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Sorted it out. Potentially, it could have been some corrosions inside the positive clamp. I had some corrasions issue previously. At the time I cleaned it up and sprayed some battery terminal protector. Potentially as it was disconnected for a few days there were additional build up forming and it didn't have full contact with the battery. Cleaned it again and sprayed some battery terminal protector. Also left it a good 10 mins before trying to turn on the ignition again.
 

Verminator

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Good to hear that you have got it sorted out happy days..
Drive safe and stay lucky 🍀
Les n Co
 

Pedro

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2 things too watch out for with battery terminals the positive corrosion can be a result of overcharging & the negative points to under charging & usually means the car is not being used enough to sufficiently charge the battery
 
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