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A couple weeks ago I helped my mate upgrade his car speakers. 4 new speakers, tweeters and amp.
After everything was connected, we tried to start the car and it wouldn't start. There are no warning lights on the dashboard, all looks pretty normal. We are able to lock and unlock the car no problem either.
We proceeded to undo everything we did and put everything back as normal, however, the car still won't start. The car cranks, but doesn't start.
We've had a mechanic look at the car and it appears that the car isn't getting spark from the spark plug. When connecting a diagnostic device, there are no errors, or fault codes.
The car in question is a 2018 Toyota CHR.
It seems logical to diagnose why there is no spark from the spark plugs but I don't know where to start. Could someone help with a list of things to try to determine where the initial spark issue occurs. Fuel is getting to the injectors FYI.
