Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Hello Everyone here , im here again , just asking what really happen About Mazda 6 2020 which is running overheated and car shut down due to radiator was broken and overheated while running And after that car wont start so, towed to the garage sees whats wrong found out that no water in radiator So we filled with water and trying to start but it wont start have no compression so decided to open the head pulled it down and repaired after that it has a good compression and cranking very well , But why there is no spark , I checked the fuse and relays at engine compartment it all fine, I moved my Digital to ignition coil connector has Ground and 12V with ignition on ,So cam and crank see if there is voltage on the connector of cam having 12v both cam ex and cam in are fine too with Ground . next i checke the crank has 5 v reference with Ground ,,Rpm is not bouncing when cranking i checked the crank signal ignition on using my test light as what i had learned iin scannerdanner My test light connected to negative battery coz it a pull down design try to connect and disconnect my test to the crank signal i heard running inside hydraulic valve timing solenoid but nothing spark on the coil.what i think is the computer shitdown itself , while running before beacuase too much hot received from Engine coolant sensor,, befoer i forgot the costumer put a brandnew crank sensor .., stiil wont start hope you guys give a little info and all your answer much appreciated. thank you And Godbless
